Nissan offers a four-cylinder and a six-cylinder engine in the new Altima.
The C-Class Coupe will also be available with a 302-hp six-cylinder engine that gets an estimated 22 mpg.
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Another time, an engineer was developing a prototype for a six-cylinder engine.
Bonhams say that the car's eight-litre, six-cylinder engine with a low gearing ratio allowed "it to creep powerfully through the roughshod jungles of Rajasthan".
The six-cylinder diesel engine guns into life, shattering the silence across Graham Hewitt's orchard near Stonebridge.
The Tribeca will use a 3.0-liter, six-cylinder boxer engine with 250 hp.
The X5 xDrive35d features a 3.0-liter six-cylinder turbodiesel engine with 265 hp.
Plus, using the six-cylinder gas engine is part of a larger strategy to apply the hybrid powertrain to various models, including the 5 Series and 7 Series.
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But industry buzz is around the success of a turbocharged, six-cylinder Ford engine that uses a fifth less fuel than older, larger V8 engines of similar power.
The few hybrids BMW has introduced previously, such as the ActiveHybrid 7 and ActiveHybrid X6, which use an eight-cylinder gasoline engine instead of a six-cylinder, have not sold well.
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The Electric Defender test vehicles swap the 2.2-liter, four-cylinder diesel engine and six-speed manual gearbox of the regular Defender 110 for a 70-kilowatt electric motor that puts out the equivalent of 94 horsepower and 243 foot-pounds of torque.
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Volkswagen has to make sure the four-cylinder engine in the Jetta and Audi A4 doesn't outperform the six-cylinder in the Passat and Audi A6.
The most efficient Cruze model, the Eco, uses a 138-horsepower, turbocharged, four-cylinder engine and a manual, six-speed transmission to achieve an EPA rating of 28 mpg city, 42 highway.
Vehicles with fuel-saving six-speed transmissions or cylinder deactivation systems let a big V8 engine run on just four cylinders on the highway.
Coming in three trim levels, all models come powered by a peppy 180-horsepower 2.4-liter four-cylinder engine that drives the front wheels via a six-speed automatic transmission.
The Gran Turismo should get about what a standard 3-series gets: up to 36 mpg on the highway with a manual transmission and a four-cylinder engine and 33 mpg on the highway with the six cylinder motor and automatic transmission.
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