You have to mix oil into the gas in a two-stroke engine because the holes in the cylinder wall prevent the use of rings to seal the combustion chamber.

在二冲程发动机中你必须混和燃料和气体，因为气缸壁上的孔阻止使用活塞环密封燃烧室。

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Its specifications are jaw dropping: Powered by a 10-cylinder engine, the hand-built carbon-fiber two-seater is capable of a top speed of 202 miles per hour.

LFA的参数强大得让人瞠目结舌：lfa是一款手工打造的碳纤维双座跑车，搭载了一个10汽缸引擎，最高时速达每小时202英里。

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How can you not love a two-door wagon that seats seven (a third row folded up from the floor) and has a two-stroke, three-cylinder engine?

作为一款两门旅行车却有7个座位(第三排座椅可以折叠)，而且它还装着两冲程的三缸发动机，我们怎能不喜欢它？

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At the 2012 Paris Motor Show, which opened last weekend, Audi unveiled its brand-new Crosslane Hybrid Coupe concept, which is powered by a 1.5L three-cylinder engine and two electric motors.

ENGADGET: Inhabitat's Week in Green: solar panel printer, gold producing bacteria and a life-size of horse made of computer keys

For the Ford F-150, the most popular vehicle on American roads, they take out the inevitable V-8, and replace it with a four-cylinder engine, an average of 22-kilowatt-hour battery packs, and two 60-kilowatt electric motors.

FORBES: Written by Jim Motavalli