Bentley 4 Litre

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Bentley 4 Litre
Manufacturer Bentley
Production 1931
50 produced
Predecessor 4½ Litre/Speed Six
Successor 3½ Litre
Class Luxury car
Engine 3.9 L Ricardo I6
Wheelbase 134 in (3404 mm)
Designer Walter Owen Bentley

The 4 Litre was an attempt at restoring the Bentley company to a good financial state. Introduced in 1931, it used a Ricardo F-head engine (modified by Walter Owen Bentley) in an attempt to attract more buyers. Instead, the company went into receivership shortly after, with archrival Rolls-Royce successfully purchasing the company.

The conventional straight-6 engine used an 85 mm (3.3 in) bore and 115 mm (4.5 in) stroke for a total of 3.9 L (3915 cc/238 in³) of displacement. It lacked the high power output and technology of the previous Bentley-designed engines.