Maserati engineers have packed the 2007 GranTurismo with a dual overhead cam, 32-valve, 4.2-liter V8 engine that pushes 405 horsepower at 7,100 rpm and 339 lb.-ft. at 4,750 rpm; 254 lb.-ft. is available at 2,500 rpm. A six-speed adaptive automatic transmission with paddle shifters is standard, and when working in conjunction with the potent V8, helps the Maserati coupe reach 62 mph in only 5.2 seconds. The GranTurismo carries 49 percent of its weight over the front end and 51 percent over the rear wheels, which measure 19 inches (20s are optional). With a wheelbase of 116 inches and a length spanning 192 inches, the GranTurismo loses about seven inches of length and four inches of wheelbase compared to the Quattroporte sedan.