Mercedes S63 AMG 4Matic Coupe: The high performance version of the two-door S63 coupe burns up the road with a 5.5-liter V8 that gets 577 horsepower and 664 pound-feet of torque. The car can accelerate from 0 to 60 in 3.9 seconds and has a top speed of 186 mph. Mercedes shaved 140 pounds off the previous model by using more lightweight materials, including a lightweight lithium-ion battery and a composite braking system. That will help fuel economy. For the first time, the S63 AMG will come standard with an all-wheel-drive system. The system sends two-thirds of the engine torque to the rear wheels, for better performance, but gives drivers more control on wet or icy roads. The S63 AMG goes on sale this fall in the U.S. Pricing wasn't announced, but it will top $100,000.