There are a couple of reasons why a big 4.0-liter engine has eight half-liter cylinders rather than one big 4-liter cylinder. The main reason is smoothness.

一 个4.0升的发动机有八个0.5升的气缸而不是一个4.0升的大气缸，其中有几个原因：主要原因是流畅性。

youdao

While it is available with a more-powerful eight-cylinder engine, I preferred the six-cylinder model's more nimble, better-balanced feel.

虽然该车也有马力更强的八缸发动机可供选择，但我更喜欢使用六缸发动机的型号，因为它给人一种更灵活、更平衡的感觉。

youdao

Ford's engineers created a new technology which could give a four cylinder engine the power of six, and a six cylinder the power of an eight.

福特的工程师创造一个新技术，能使一个四缸改动机具有6缸的动力，一个六缸的具有8缸的动力。

youdao

It's just hard to score in the luxury market when you refuse to do an eight-cylinder engine, wear undistinguished styling and don't offer a rear-wheel-drive car.

FORBES: Acura: The Honda That Didn't

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.

FORBES: BMW ActiveHybrid 3 Review: A Lot Of Fun On Slightly Less Fuel

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".

BBC: Indian tiger hunting Rolls Royce is for sale