Doctor Drivel ) gurgled happily, sounding much like they
were saying :

Put a rotary engine in it and simpler again.

Wankel-Hybrid...
boggle

It would be boggling to a Muppet like you.

It certainly would. Hell, it might be almost as economical as a normal
petrol-engined car.

Do a Google on the Quasiturbine.

Meanwhile, in the real world...