gas engine

How on earth could gas engines like this have been developed first, though?

The gas engine was not very reliable in those days.

The first model, G-1, was produced in 1979 with a gas engine.

The new models are expected to have a range of at least 40 miles without using their gas engines.

Of these gas engines, currently one is in working order.

He then designed a new gas engine of greater size and power than any produced by the company before.

As built, the line was powered by a gas engine.

But when the car speeds up, the gas engine takes over.

When in use, it was powered by a gas engine.

These systems are effective at low speeds because they can move the car without running the gas engine.