Its 700-horsepower engine can use either compressed natural gas or gasoline, and altogether it weighs just 1400lbs.

700马力的引擎，可以由压缩天然气或者汽油驱动，总共才1400磅重。

youdao

It has a six hundred twenty-four cubic centimeter, thirty-five horsepower, gas-powered engine.

VOA: special.2009.03.28

The "silos" are actually smokestacks for the two 6, 130-horsepower natural gas-powered compressors that will take gas from a 30-inch pipeline and send it at a higher velocity into a 24-inch one.

WSJ: NY town of 9/11 workers wages gas pipeline fight

The powertrain, which we saw earlier on a concept car, combines a V6 bi-turbo gas engine with a 95 horsepower electric model for 416 total system horsepower.

ENGADGET

Turbocharged engines (both diesel and gas) also weigh less per horsepower and this saves a bit on fuel, too.

FORBES: Turbocharging China