IndyCar Series

IndyCar Series
Category Open-wheel racing
Country International
Inaugural season 1996[1]
Drivers 29
Teams 15
Constructors Dallara
Engine suppliers Chevrolet
Honda
Tire suppliers Firestone
Drivers' champion France Simon Pagenaud
Teams' champion United States Team Penske
Official website www.indycar.com
Current season

The IndyCar Series (currently known as the Verizon IndyCar Series for sponsorship reasons) is the premier level of open wheel racing in North America.[2] Its parent company began in 1996 as a competitor to CART known as the Indy Racing League (IRL) which was created by then Indianapolis Motor Speedway owner Tony George. In 2008, the IndyCar Series merged with the Champ Car World Series (formerly CART). The series is sanctioned by INDYCAR.

The series' premier event is the Indianapolis 500.

Overview

Series name

The Verizon IndyCar Series logo (2014–2015)

Due to the legal settlement with CART, the Indy Racing League was unable to utilize the name IndyCar until the beginning of the 2003 season. For 1996–1997, the series was simply referred to as the Indy Racing League, with no genre designation. For 1998–1999, the series garnered its first title sponsor, and was advertised as the Pep Boys Indy Racing League. The contract was not renewed after the second year. In 2000, the series sold its naming rights to Internet search engine Northern Light for five seasons, and the series was named the Indy Racing Northern Light Series. After only two seasons, however, the sponsorship agreement ended when Northern Light reevaluated its business plan and ended all sponsorships.[3]

The league reverted to the Indy Racing League name for the 2002 season, with no title sponsor. The IndyCar Series name was officially adopted beginning in 2003, as the series was now legally entitled to use it. In 2006, IndyCar forged an alliance with Simmons-Abramson Marketing (headed by Gene Simmons of the hard rock band Kiss), promising to be "actively engaged in the league's marketing, event, public relations, sponsorship, merchandising and branding efforts—from its IndyCar Series to the venerable Indianapolis 500". Simmons also co-authored the new IndyCar theme song, "I Am Indy".[4] For the 2008 season, DirecTV served as a presenting sponsor, although this deal only lasted one year due to objections by the series' new cable broadcaster Versus, as it was owned by a competitor, the Comcast cable company.[5][6][7]

Izod was announced as the series title sponsor beginning on November 5, 2009. Exact financial terms were not disclosed but the deal was reported to be worth at least $10 million per year for 5 years, but ran only 3 of the originally announced 5 seasons, as [8] Izod ended its sponsorship after the 2013 season.[9]

On March 14, 2014, Verizon Wireless was announced as the series title sponsor.[10]

Television

Since the series inception, IndyCar Series events have been broadcast in the United States on several networks, including ABC, CBS, ESPN, Fox Broadcasting Company, Fox Sports Networks, and Spike (TV network).[11] Beginning in 2009, NBCSN began a 10-year deal to broadcast 13 IndyCar races per season, whereas the remaining races, including the Indianapolis 500, would remain on ABC through 2018.[12] As of the 2016 season, ABC airs 5 races per season (plus two days of qualifying for the Indianapolis 500), with NBCSN or other NBCUniversal networks (in the event of scheduling conflicts) airing the remainder of the schedule.[13]

In the United Kingdom, since the launch of BT Sport in August 2013 races are shown on one of the BT branded channels or ESPN. Previous to August 2013, the IndyCar Series races were broadcasts on the Sky Sports family of networks, with the viewing figures of the IndyCar races in the UK outnumbering those of NASCAR races. The IndyCar Series also had highlights of all the races on the channel Five British terrestrial channel and Five USA, but has since been discontinued since the 2009 season.[14]

In Portugal, all of the IndyCar Series are broadcast on Sport TV.

In February 2013, Sportsnet announced that it would become the official Canadian broadcaster of the IndyCar Series beginning in the 2013 season in a five-year deal with the series. The new contract will include broadcasts on the Sportsnet regional networks, Sportsnet One, and City, along with mobile coverage and French rights sub-licensed to TVA Sports. Additionally, Sportsnet would also originate coverage from the Honda Grand Prix of St. Petersburg, Indianapolis 500, and Honda Indy Toronto with Bill Adam, Todd Lewis, and Rob Faulds. Canadian driver Paul Tracy also joined Sportsnet as an analyst.[15]

Rede Bandeirantes serves as the Brazilian broadcast partner in that country since 1989. Grupo Bandeirantes sports channel BandSports also show live races and race highlights. ESPN has been the international broadcast partner of IndyCar Series in Latin America (except in Brazil).

Eurosport has been the international broadcast partner of IndyCar in most of Europe (except in Bosnia and Herzegovina, Russia and the United Kingdom).

In the late 2000s, the official website streamed online all races, qualifying and practice sessions unrestricted. That service is now limited in the United States to television subscribers of the respective television network broadcasters.

Car history and current specifications

The IndyCar Series is not an open formula. The league controls and specifies the chassis and engine manufacturers that teams are allowed to use each season. The league's choice of manufacturers are changed every three years. Currently, Dallara provides the chassis to all teams, with Honda and Chevrolet providing the engines. Lotus provided engines in 2012 but left at the end of the season.

Chassis

1996 to 2011

In the series' first season (1996), 1992 to 1995 model year CART chassis built by Lola and Reynard were used. The first new Indycar came into being in 1997. Tony George specified new technical rules for less expensive cars and production-based engines. The move effectively outlawed the CART chassis and turbocharged engines that had been the mainstay of the Indianapolis 500 since the late 1970s.

A 1997-spec G-Force IRL car. This car was repainted for promotional purposes in 2008

Starting with the 2003 season, the series rules were changed to require chassis manufacturers to be approved by the league before they could build cars. Prior to that, any interested party could build a car, provided it met the rules and was made available to customers at the league-mandated price. In total, four manufacturers have built IndyCar chassis.

Dallara began producing Indycars for the 1997 season. The Dallara and G Force chassis were relatively evenly matched over their first few seasons, but eventually the Dallara began to win more races. This caused more teams to switch to the Dallara, further increasing their success. As of 2017, a Dallara chassis has been used by 17 Indy 500 winners, although there have not been any competing manufacturers since 2012. Dallara was also tabbed to build the Firestone Indy Lights machines. After the withdrawal of factory support from Panoz Auto Development, they are the only supplier of new chassis.

The G Force chassis was introduced in 1997, and won the 1997 and 2000 Indy 500 races. In 2002, Élan Motorsport Technologies bought G Force, and the chassis was renamed "Panoz G Force", and then shortened to "Panoz" in 2005. In 2003 a new model was introduced, and it won the Indy 500 in 2003–2004, and finished second in 2005. It fell out of favor starting in 2005, and by 2006 only one finished in the top ten at Indy. Little factory support was given to IndyCar teams after that point, as Panoz concentrated on their DP01 chassis for the rival Champ Car World Series. By 2008, only one Panoz saw track time, an aborted second weekend effort at Indy, that resulted in Phil Giebler being injured in a practice crash.

A Panoz GF09 driven at Indianapolis by Jaques Lazier in 2007

Riley & Scott produced IndyCar chassis from 1997 to 2000. Their initial effort, the Mark V, was introduced late in the 1997 season, severely limiting its potential market. It also proved to be uncompetitive. After Riley & Scott was purchased by Reynard, an all-new model, the Mark VII, was introduced for the 2000 season. It won in Phoenix, the second race of the season (driven by Buddy Lazier), but was off the pace at Indy and was quickly dropped by its teams.

Falcon Cars was founded by Michael Kranefuss and Ken Anderson in 2002 as the third approved chassis supplier for the 2003 season. One rolling chassis was completed and shown, but it was never fitted with a working engine and never ran. No orders were ever filled. Superficially, IndyCar machines closely resemble those of other open-wheeled formula racing cars, with front and rear wings and prominent airboxes. Originally, the cars were unique, being designed specifically for oval racing; for example, the oil and cooling systems were asymmetrical to account for the pull of liquids to the right side of the cars. Later cars were designed to accommodate the added requirements of road racing.

Because of a preexisting schedule conflict, the Champ Car World Series spec Panoz DP01, with a Cosworth engine, was run in an IndyCar Series points event in the 2008 Toyota Grand Prix of Long Beach.

2012

The 2012 DW12 chassis driven by Scott Dixon showing the rear wheel enclosure

In 2012 the series adopted the Dallara IR-12 chassis[16] as a cost control method, and IndyCar negotiated a price of $349,000 per chassis.[17] The new specification also improved safety, the most obvious feature being the partial enclosure around the rear wheels, which acts to prevent cars ramping up over another vehicle's back end.

This chassis was intended to support multiple aerodynamic kits, but introduction of these was delayed until 2015 with teams citing costs.[18] Currently, there are two aero kits (each tied to which engine a team uses), but beginning in 2018 the series will run with a single, redesigned "spec" aero kit, which will both reduce aerodynamic downforce and save money as teams will no longer have to purchase different chassis for road and oval tracks.

After the events of the 2011 IZOD IndyCar World Championships the chassis was nicknamed DW12 in honour of Dan Wheldon.[19]

Fuel

Methanol

At its inception, the IRL used methanol racing fuel, which had been the de facto standard in American open wheel racing since the 1964 Indianapolis 500 Eddie Sachs – Dave MacDonald crash. Methanol had long provided a safer alternative to gasoline. It had a higher flash point, was easily extinguishable with water, but burned invisibly. With the IRL's introduction of night races in 1997, the burning of methanol fuel was visible for the first time, seen with a light blue haze. With this in mind, in an effort to make it more visible in case of fire during daylight hours, additional mixtures were placed in the fuel. As a safety feature, the methanol would burn with a color.

Ethanol

In 2005, driver Paul Dana brought the sponsorship of the Ethanol Promotion and Information Council (EPIC) to his IndyCar team. EPIC is a consortium of ethanol producers that advocate the increased use of ethanol. EPIC was anxious to address public concerns that ethanol use led to engine damage and poor performance when used in street cars. As a marketing effort, it was believed that sponsoring an IndyCar could be used as a tool to promote education and awareness of ethanol use, and to curb the spread of erroneous information. Dana was killed in a crash in 2006, but the IRL already begun a transition to ethanol fuel. For the 2006 season, the fuel was a 90%/10% mixture of ethanol and methanol. Starting in 2007, the league advertised "100% Fuel Grade Ethanol", the first competitive series to utilize renewable fuel. The mixture is actually 98% ethanol and 2% gasoline for races held in the United States. It was provided by Lifeline Foods of Saint Joseph, Missouri. The additives satisfied the U.S. government's requirements that the alcohol be unfit for human consumption, and added visible color in case of a fire. The 2010 São Paulo Indy 300, held in Brazil – outside of the U.S. regulations – utilized a full E100 mixture, the first instance in the sport.

To compensate for the gain of power due to the use of ethanol, the displacement was reverted to 3500 cc. Since ethanol gets better fuel mileage than methanol, the fuel tanks in the car were reduced in size (30 US gallons to 22 US gallons). Compared to methanol, human contact with the current IndyCar fuel is much less harsh, and the fumes much less irritating. Unlike methanol, ethanol is not caustic and does not cause chemical burns when it comes in contact with skin.

In May 2010, Sunoco became the official fuel of the series starting in 2011, running through 2014. Sunoco is still the official fuel of IndyCar. Sunoco will work with APEX-Brasil and UNICA to provide ethanol for the series.[20]

Engines

The initial 1996 IRL season, as well as the first two races of the 1996–97 season, featured engines with specifications left over from the rival CART series competition. Those chassis/engine combinations were essentially under the same rules utilized by teams which participated in the 1995 Indianapolis 500, which was sanctioned by USAC. V-8 powerplants were allowed the typical 45 inHg (22.1psi) of pressure boost. The Menard-Buick V6 engine used in 1996, however, was an updated powerplant from the 1995 version. In addition, the V-6 stock block engines (Buick-Menard) were allowed 55 inHg (27.0psi) of boost at all races, instead of just at Indianapolis. During the CART era, V-6 stock blocks were only allowed 45 inHg at all races outside of Indy, which was a decided disadvantage and left the engine out of favor.

Ford-Cosworth reluctantly provided support to teams wishing to run their older-spec engines in the IRL, a major point of contention for CART management, to whom Ford-Cosworth was an official engine supplier. The Ilmor Mercedes V-8 engine, also a mainstay CART powerplant, was permitted, but the only time it was used was a one-off at the 1996 Indy 500 by Galles Racing.

Honda Indy V8 engine on the car

Starting in 1997, IRL cars were powered by 4.0 L V8, methanol-burning, production-based, normally aspirated engines, produced by Oldsmobile (under the Aurora label) and Nissan (badged as Infiniti). Per IRL rules, the engines sold for no more than $80,000, and were rev-limited to 10,500 rpm.[21] They produced around 700 hp (520 kW).[21]

The engine formula was changed with the 2000–2004 formula. The displacement was dropped from 4000 cc to 3500 cc, and the requirement for the block to be production-based was dropped. This formula was used through 2003.[22] In 2004, in the wake of several crashes including the fatal crash of Tony Renna and the severe crash of Kenny Bräck, the displacement was further reduced to 3000 cc to curb top speeds.

Infiniti's engines, though reliable, were significantly down on power compared to the Auroras in 1997, leading many of the teams that had initially opted for the Infiniti to switch. By the end of the 1998 season, only a handful of low-budget teams were using the Infiniti. However, early in the 1999 season, Cheever Racing, a well-funded team, was brought on to develop the engine with team owner Eddie Cheever expanding the team to two cars and bringing on his brother Ross Cheever as a test driver. By 2000, the engine had improved markedly and Cheever captured the marque's first win at Pikes Peak International Raceway. However, despite the improved success, few teams made the switch to the Infiniti and the company left the series after the 2002 season to focus on powering the league's new Infiniti Pro Series (now Firestone Indy Lights).

As part of General Motors' discontinuance of the Oldsmobile name, the Olds engine was rebadged as the Chevrolet starting with the 2002 season.[23] However, the effort could not compete with the Toyota and Honda programs starting in 2003. In August 2003, Chevrolet announced to the public its "Gen IV" motor, a rebadged Cosworth motor for competition. At the time, Cosworth was owned by Ford. On November 4, 2004, Chevrolet stated that it would be ending its IRL engine program effective with the end of the 2005 season, citing costs that exceeded value, according to then GM Racing Director Doug Duchardt, "The investment did not meet our objectives."

In 2003, Toyota came to the IRL from the rival CART series. Toyota won their first race in Miami, as well as the Indianapolis 500 and the series title. However, Toyota had just one podium in the last seven races of 2004, and only Penske Racing fielded competitive Toyota-powered cars in 2005. In November 2005, Toyota company officials announced the company's withdrawal from American open-wheel racing and the immediate discontinuation of its IRL program, coinciding with its entrance into NASCAR's Craftsman Truck Series in 2004, and its discontinuation of its IMSA program.

Honda also came to the IRL in 2003, and by 2005 was clearly the dominant engine manufacturer. Starting in 2006, they became the only engine manufacturer in the IndyCar Series, and continued in that capacity through 2011. The Honda V8 engine was co-developed by Ilmor , which is part owned by Roger Penske for tune up, engine maintenance, arrangement and trackside support.

During that time, since the IndyCar Series had only one engine manufacturer, Honda focused on minimizing engine failure and minimizing costs instead of defeating rivals. As such, the engines were moderately de-tuned. The engines proved themselves to be quite durable—there had been no engine failures at Indy from 2006 to 2010, which also lowered the number of crashes. Most of the engines, including those used for the Indy 500, are used for multiple races and were intended to last 1,200 miles (1,931 kilometers) between rebuilds.[24] The Honda engines were only available via lease arrangement from Honda, which, for the 2010 full season, cost $935,000 U.S. per season, per car.[25]

The current, fourth-generation IndyCar formula was presented in 2012. The engines are now 2.2-liter twin turbo V-6's putting out estimated 550–750 hp depending on the level of boost used. They are limited to 12,000 rpm. Engines are currently supplied by Chevrolet and Honda.[26] Starting in the 2011 season, McLaren has supplied its TAG-400i engine control unit.

Specifications

Year 2011 final

Year 2012–2020

The future of IndyCar

As part of the 2012 chassis, aero kits were also set to be introduced. The introduction of such kits was postponed until 2015, leaving all cars running the same aero package provided by chassis supplier Dallara.

In 2015, teams began running aero kits developed by their engine manufacturers. The kits, while increasing speeds and offering clear distinction between the two manufacturers, did lead to significant cost increases. Further, Chevrolet's aero kit was the more dominant with Honda only able to mount a competitive charge on ovals due to having slightly better engine power. While Honda was able to make gains in 2016, after two years of development the kits are frozen for 2017 and starting in 2018 all cars will run the same aero package again. To further help reduce costs, IndyCar will allow teams to shop for competitively priced non-safety related parts such as brakes instead of mandating parts from specific suppliers.[29]

IndyCar had hoped to set a new speed record at the Indianapolis Motor Speedway by 2016 with the introduction of aero kits and the development work associated with them. However, after a series of safety concerns during practice for the 2015 Indianapolis 500 with the Chevrolet aero kit package, this is now seen as unlikely to happen in the near future. [30]

IndyCar has indicated the series will run the current DW12 chassis through at least the 2020 season, although it has received safety upgrades since its introduction in 2012 and will receive at least one additional major safety upgrade in 2018. The series has left open the possibility of going to a completely different chassis platform starting in 2021.[31]

Seasons

Following the merger of CART/Champ Car into the Indy Racing League in 2008, the IRL acquired all intellectual property and historic records.

Season Champion Rookie of the Year Most Popular Driver
Driver Team Chassis Engine
19961 United States Scott Sharp A. J. Foyt Enterprises Lola Ford-Cosworth not awarded not awarded
United States Buzz Calkins Bradley Motorsports Reynard Ford-Cosworth (2)
1996–97 United States Tony Stewart Team Menard G-Force Oldsmobile United States Jim Guthrie Netherlands Arie Luyendyk
1998 Sweden Kenny Bräck A. J. Foyt Enterprises (2) Dallara Oldsmobile United States Robby Unser Netherlands Arie Luyendyk (2)
1999 United States Greg Ray Team Menard (2) Dallara Oldsmobile United States Scott Harrington Canada Scott Goodyear
2000 United States Buddy Lazier Hemelgarn Racing Dallara Oldsmobile Brazil Airton Daré United States Al Unser, Jr.
2001 United States Sam Hornish, Jr. Panther Racing Dallara Oldsmobile (5) Brazil Felipe Giaffone United States Sarah Fisher
2002 United States Sam Hornish, Jr. Panther Racing (2) Dallara Chevrolet France Laurent Rédon United States Sarah Fisher
2003 New Zealand Scott Dixon Chip Ganassi Racing G-Force (2) Toyota United Kingdom Dan Wheldon2 United States Sarah Fisher (3)
2004 Brazil Tony Kanaan Andretti Green Racing Dallara Honda Japan Kosuke Matsuura United States Sam Hornish, Jr.
2005 United Kingdom Dan Wheldon Andretti Green Racing Dallara Honda United States Danica Patrick United States Danica Patrick
20063 United States Sam Hornish, Jr. (3) Penske Racing Dallara Honda United States Marco Andretti United States Danica Patrick
2007 United Kingdom Dario Franchitti Andretti Green Racing (3) Dallara Honda United States Ryan Hunter-Reay United States Danica Patrick
2008 New Zealand Scott Dixon Chip Ganassi Racing Dallara Honda Japan Hideki Mutoh United States Danica Patrick4
2009 United Kingdom Dario Franchitti Chip Ganassi Racing Dallara Honda Brazil Raphael Matos United States Danica Patrick
2010 United Kingdom Dario Franchitti Chip Ganassi Racing Dallara Honda United Kingdom Alex Lloyd United States Danica Patrick (6)
20115 United Kingdom Dario Franchitti (4) Chip Ganassi Racing Dallara Honda Canada James Hinchcliffe United Kingdom Dan Wheldon6
2012 United States Ryan Hunter-Reay Andretti Autosport (4) Dallara Chevrolet France Simon Pagenaud Canada James Hinchcliffe
2013 New Zealand Scott Dixon Chip Ganassi Racing Dallara Honda (9) France Tristan Vautier Brazil Tony Kanaan
2014 Australia Will Power Team Penske Dallara Chevrolet Colombia Carlos Muñoz Colombia Juan Pablo Montoya
2015 New Zealand Scott Dixon7 (4) Chip Ganassi Racing (7) Dallara Chevrolet Colombia Gabby Chaves United Kingdom Justin Wilson8
2016 France Simon Pagenaud Team Penske (3) Dallara (18) Chevrolet (5) United States Alexander Rossi United States Bryan Clauson9
  1. ^ In 1996, Scott Sharp and Buzz Calkins were tied in the final standings and were declared co-champions. Calkins had one win, as opposed to Sharp being winless, but no tiebreakers were in place.
  2. ^ Although it was Dixon's first year in IndyCar and he won the championship, he was not considered a rookie because of earlier Champ Car experience.
  3. ^ In 2006, Sam Hornish, Jr. and Dan Wheldon tied in the final standings for first place. This time, IndyCar had tiebreakers, and Hornish clinched the championship by having more victories than Wheldon during the season.
  4. ^ Although no report was officially released about it in 2008, IndyCar.com confirmed in 2009 that Danica Patrick being named Most Popular Driver was her "fifth consecutive" win of the award.[32]
  5. ^ The 2011 season was originally supposed to end at Las Vegas, but the death of Dan Wheldon in an early crash caused IndyCar to abandon the race. The points reset to the standings as of the scheduled penultimate race at Kentucky, with Franchitti winning the championship.
  6. ^ Posthumously awarded to Dan Wheldon by a vote of members on the official IndyCar Nation website. This marked the first time a part-time driver won the award.
  7. ^ Dixon and Montoya finished tied in points, Dixon winning the title based on wins (3 to 2).
  8. ^ Posthumously awarded to Justin Wilson by a vote of members on the official IndyCar Nation website. This marked the second time a part-time driver won the award.
  9. ^ Posthumously awarded to Bryan Clauson by a vote of members on the official IndyCar Nation website. This marked the third time a part-time driver won the award.

Individual discipline trophies

Starting in 2010, the series began recognizing two sub-set championship trophies alongside the season championship. The two primary disciplines of IndyCar (ovals and road courses) were named after respective legends of the sport: A. J. Foyt and Mario Andretti, respectively. The discipline trophies were created as the series moved closer to a 50/50 split of ovals and road courses, and to encourage incentive for part-time entries – specifically those that might prefer to compete in one discipline over the other.

This arrangement also creates a reasonable opportunity for a team to employ the services of two drivers for one season entry. A team could hire a specialist for ovals and a specialist for road courses, whom combined would maintain the entry's total owner points but individually work towards their own separate disciplines.

Note that street courses are included as part of the road racing discipline. Since 2013, the individual discipline trophies have received markedly less fanfare.

Season A. J. Foyt
Oval Trophy		 Mario Andretti
Road Course Trophy
2010 United Kingdom Dario Franchitti Australia Will Power
2011 New Zealand Scott Dixon Australia Will Power
2012 United States Ryan Hunter-Reay Australia Will Power
Season A. J. Foyt
Former Oval Trophy		 Mario Andretti
Former Road Course Trophy
2013 Brazil Hélio Castroneves New Zealand Scott Dixon
2014 Colombia Juan Pablo Montoya Australia Will Power
2015 Colombia Juan Pablo Montoya Australia Will Power
2016 United States Josef Newgarden[33] France Simon Pagenaud

Championships by Drivers

Driver Total Seasons
Franchitti, DarioDario Franchitti 4 2007, 2009, 2010, 2011
Dixon, ScottScott Dixon 2003, 2008, 2013, 2015
Hornish Jr., SamSam Hornish Jr. 3 2001, 2002, 2006
Sharp, ScottScott Sharp 1 1996
Calkins, BuzzBuzz Calkins 1996
Stewart, TonyTony Stewart 1997
Bräck, KennyKenny Bräck 1998
Ray, GregGreg Ray 1999
Lazier, BuddyBuddy Lazier 2000
Kanaan, TonyTony Kanaan 2004
Wheldon, DanDan Wheldon 2005
Hunter-Reay, RyanRyan Hunter-Reay 2012
Power, WillWill Power 2014
Pagenaud, SimonSimon Pagenaud 2016

See also

References

  1. ↑ The first American championship car season took place in 1905.
  2. ↑ "IndyCar lands title sponsor". IndyStar.com. 2009-11-03. Archived from the original on November 6, 2009. Retrieved 2010-08-23.
  3. ↑ "Indy Racing and Northern Light end partnership". Motorsport.com. 2002-01-07. Retrieved 2010-08-23.
  4. ↑ "IRL Forms Innovative Marketing Agreement With Gene Simmons & Richard Abramson". GeneSimmons.com. 2006-01-10. Retrieved 2010-08-23.
  5. ↑ "IRL caught in TV war". Indianapolis Business Journal. Retrieved 1 May 2016.
  6. ↑ "Indianapolis 500 stays in the family with sponsor deal". USA Today. Gannett Company. Retrieved 1 May 2016.
  7. ↑ "Indy 500 gets presenting sponsor in 3-year deal worth about $5 million". Indianapolis Star. Gannett Company. Retrieved 1 May 2016.
  8. ↑ "Izod is IndyCar Series title sponsor". autoweek.com. 2009-11-06. Archived from the original on December 12, 2009. Retrieved 2010-10-29.
  9. ↑ "Izod dropping IndyCar Series sponsorship". Indianapolis Business Journal. September 27, 2013. Retrieved December 1, 2013.
  10. ↑ "New entitlement partner drives innovation, tech". March 14, 2014. Retrieved March 15, 2014.
  11. ↑ "IRL Adds TNN to its family as all '98 races on broadcast TV". Sports Business Daily. 1997-12-04. Retrieved 2010-08-23.
  12. ↑ "IndyCar Announces New TV Deal". insideindianabusiness.com. 2008-08-07. Retrieved 2010-10-29.
  13. ↑ "2016 Schedule" (PDF). Retrieved 5 June 2016.
  14. ↑ "TV Feed". About Five. Retrieved 2010-08-23.
  15. ↑ "Blanketing Canada with in-depth series coverage". IndyCar.com. Retrieved 4 March 2013.
  16. ↑ "IndyCar's 2012 Chassis: Lessons Learned from the Car of Tomorrow". Archived from the original on November 19, 2011. Retrieved 14 September 2015.
  17. ↑ "Dallara named IndyCar chassis supplier for 2012". Retrieved 20 January 2013.
  18. ↑ "Aero Kit Discussions, Decisions Continue To Evolve". Retrieved 20 January 2013.
  19. ↑ "Dallara DW12, named after the late Dan Wheldon, transformed IndyCar". Retrieved 20 January 2013.
  20. ↑ "Sunoco to Become Official Fuel of Indy Racing League in 2011". IndyCar Series. Marketwatch.com. 2010-05-27. Retrieved 2010-05-27.
  21. 1 2 "IRL Aurora V8". Autoworld.com. 2001-03-29. Retrieved 2010-08-23.
  22. ↑ "IRL Engine Specifications Announced for 2000–2004 Seasons". Motorsport.com. 1998-11-17. Retrieved 2010-08-23.
  23. ↑ "Chevy revs for 2002 IRL season". SAE Intl. Retrieved 2010-08-23.
  24. ↑ Reitz, Victoria (2006-05-25). "Leveling the playing field". MachineDesign.com. Retrieved 2003-04-13.
  25. ↑ "IndyCar confirms rule changes, cost savings". Racer.com. 2010-01-12. Retrieved 2010-08-23.
  26. ↑ "Fan Info - INDYCAR 101 - The Car Dallara - Indycar Series Chassis Specifications". indycar.com. Retrieved 2014-10-07.
  27. ↑ IndyCar Series Technical Update Press Conference, IndyCar.com, February, 22, 2007
  28. ↑ http://www.roadandtrack.com/motorsports/news/a18270/you-think-driving-an-indy-car-is-easy/
  29. ↑ http://www.indycar.com/News/2016/09/09-14-Aero-Kits-Future
  30. ↑ http://www.autosport.com/news/report.php/id/112819
  31. ↑ http://www.racer.com/indycar/item/135797-indycar-dw12-extended-four-more-years
  32. ↑ indycar.com Staff (2009-10-19). "Night for the fans". IndyCar.com. Retrieved 2010-08-23.
  33. ↑ http://motorsports.nbcsports.com/2016/08/29/newgarden-ends-as-indycars-top-oval-driver-in-2016/
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