The Hyunda Sonata is classified as a large sedan because of interior volume. Both four-cylinder and V-6 models get bumps in power and fuel economy, making the Sonata the most efficient car amongst its chief rivals, even if by a single mpg. The V-6 engine comes with a standard five-speed automatic with a manual mode, The four and six cylinder engines get a boost of 13 and 15 hp, respectively, and are now rated at 21/32 mpg and 19/29 mpg respectively.
