2010 Porsche Panamera at 24 mpg on highway

The new Panamera is unlike the other sports cars on Porsche’s lineup that are known for being quite fuel-efficient. It’s not exactly a gas-guzzler either and certainly won’t be taxed as such, according to Porsche Cars North America spokesman Gary Fong.

The large four-door Panamera has an impressive size and power and comes standard with 400 horsepower. Fong tabs fuel economy for the 4.8-liter, 400-horsepower Panamera S and 4S models at an impressive 16-mpg city and 24 mpg highway. Fong adds that the 500 pony Panamera Turbo will still have a 15/23 rating. On the other hand, Maserati’s rival Quattroporte GT S achieves 12 mpg/18 highway, and its power is lower by 66hp. Fuel economy numbers for the Panamera are really not that shabby though. It beats even some sport coupes in the $100,000+ range. While the car isn’t lightweight, it has these fuel economy numbers due to its dual clutch transmission and the inclusion of start/stop technology. By the way, be reminded that these figures came from Porsche. We’ll have to wait for the Environmental Protection Agency’s own numbers.