Forbes contributors publish independent expert analyses and insights. Rhett is a DC based executive coach who covers entrepreneurship. Does that efficiency rate seem low for an average customer ...

Formula 1 cars have some excellent thermal efficiency, with even the best mainstream cars just scraping under their potential ...

A modern Formula 1 power unit squeezes more useful work from a liter of fuel than any production car on the planet.

Tesla has proven over the years that its EVs are some of the top choices on the market when it comes to efficiency. Most luxury rivals' electric vehicles aren't nearly as frugal, and they often aren't ...

What if a gas-powered car were marketed only with range estimates instead of an efficiency rating such as mpg? Well, that’s mostly been the case with electric vehicles. Instead of mpg, the EPA ...

Porsche has pulled the wraps off its next-generation Formula E challenger, the 99X Electric successor built for the series’ ...