TOP GEAR on BBC America began its new season on 8/17/2009. The three new cars tested and compared this week were the BMW M6, the Porsche Carrera and the "baby" Aston Martin. During timed speed and handling tests on the Isle of Man, the Porsche won! The M6 has 501 horsepower and was the most powerful car by far but had a lower average speed over the course than the Porsche. The Aston Martin had a great exhaust note (lol)!