Audi UrS4/S6
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The Audi UrS4 and Audi UrS6 were the original models of the Audi S4 and S6 automobiles. The UrS4 was produced from 1992 to 1994 while the UrS6 was produced from 1995 to 1997. They both featured a 227 horsepower 2.2 liter, 5-cylinder engine with turbocharging and an intercooler, with a torque of 258 ft·lb. In europe, V8-powered versions of both S4 and S6 were available. The S4 version sported a 280hp engine (same "ABH" engine as in Audi V8), the S6 had a upgraded engine "AEC" with 290hp.
[edit] Explanation of Name
The term 'UR' is used in the German language to signify 'original' (after an ancient city of the same name) and is used by car enthusiasts worldwide to refer to the original Audi Quattro that was produced from 1980 - 1991 (the "UR-quattro"). The use of the term has now been extended to the original S4 and S6 vehicles, to differentiate them from later models with the same name.
The 'S' prefix letter has signified Audi's high-performance production models since the early 1990s. The S4 was the high-performance version of the Audi 100 saloon, and was known originally as the Audi 100 S4. It featured a 20-valve, 5-cylinder turbocharged engine and quattro permanent four wheel drive, providing outstanding roadholding in all weathers. Befitting its status at the top of the Audi 100 series, it was luxuriously appointed and featured as standard a lot of equipment that was optional on lesser models. The car was available in sedan and station wagon versions, the latter called an Avant by Audi.
In the mid 1990s Audi's model designation system changed, with the 80 and 100 series being superseded by the A4 and A6. While the A4 was an entirely new car, the first A6 was a facelift of the Audi 100. The changes were minor and mostly cosmetic, and consisted of minor engine and specification changes, new bumpers, wheels, and front lights for an updated look. As the name S4 was now earmarked for a performance version of the A4, the updated performance version of the A6 became the S6. Still sporting the 5-cylinder turbocharged engine, performance was essentially unchanged. The 1997 S6 was the last production Audi fitted with the famous 5-cylinder turbo engine that first came to prominence in Audi quattro rally cars in the 1980s. There was a european version called the S6 Plus, which featured a 4.2 litre V8 engine.
The UrS4 and UrS6 are considered very well-built and reliable cars with both good performance and durability, and have a strong enthusiast following today. Advanced for their day, they still look modern, and are considered to provide a high level of sophisticated performance.
[edit] References
- Arthur St. Antoine. "Magnum Force". Car and Driver (April 1992): 47–56.
[edit] External links
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