The big news for 2008 is direct injection. All three engines benefit, delivering more power, more torque, and better fuel economy. The VW-based 3.6-liter V6 makes 43 more horsepower and 44 lb.-ft. more torque than the previous 3.2-liter V6. Acceleration to 60 mph takes less than eight seconds with the Tiptronic automatic, and 7.5 seconds with the manual. The 4.8-liter V8 pumps 385 hp and 369 lb.-ft. to all four wheels, up 45 and 59 respectively, accelerating to 60 in 6.4 seconds. The Turbo's twin-turbocharged 4.8-liter V8 is blessed with 500 hp and 516 lb.-ft., increases of 50 and 56, resulting in a 4.9-second blast to 60 on the way to a 171-mph top speed.