Auto manufacturers introduce 3-cylinder engines that make a car up to 30% lighter and ameliorate fuel economy by 15-20%- without compromising on power.

Many car manufacturers like Ford, Fiat, and BMW are introducing autos with smaller, 3-cylinder engines. The engines are up to 30% lighter than traditional engines, but are just as powerful. The lighter engines also improve fuel economy by 15-20% and make cars fun to drive by improving handling. BBC News

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