This followup to Jeremy Clarkson's first SUV test, pits the Porsche Cayenne Turbo against the Hummer H2. The Cayenne Turbo sports a V8, biturbo engine that produces an impressive 520hp @ 5500rpm and 530 ft. lb torque @ 2750-3500rpm -- rocketing it from 0-60mph in just 5.2-seconds. Video after the jump.
