The Volkswagen CC isn't class-leading, but its gas mileage is about the same as four-cylinder models of other engaging sedans such as the Mazda6 and Nissan Altima.
At an EPA-rated 22 mpg city, 32 highway with the automatic transmission and four-cylinder, the CC has some pretty impressive fuel economy numbers for such a large car. Like many of its competitors, the CC actually does better with the automatic than with its standard manual transmission, which earns an EPA rating of 21/31 mpg.
Opting into the V-6 engine, though, drops the CC's fuel economy to lackluster levels. With the required 4Motion all-wheel drive, the V-6 CC is rated by the EPA at 17/25 mpg.