This a rather unusual drag race battle between the Porsche Cayenne Turbo S SUV and the new Mercedes S63 AMG luxury saloon. The new Porsche Cayenne Turbo S develops 550 hp and 750 Nm of torque. The SUV needs 4.5 seconds to accelerate from zero to 62 mph (100 km/h). The Mercedes S63 AMG develops 585 hp and 900 Nm of torque. The sedan can get from nought to 62 mph (100 km/h) in 4.4 seconds.