Toyota Prius rules the city

No competition in city driving

The Gas Sipper Smackdown is over, and Karl's on Cars fuel efficiency tests have once again proven what many hybrid fans have been saying for years. In city driving, the Toyota Prius has no competition, and that includes small diesels, such as the Jetta TDI.

Hybrid vehicles work, haters. Yes, there are some cost issues to work out, but nothing that economies of scale can't handle.