The BMW M5 CS and Porsche 911 Turbo may not be direct rivals but they are two of the quickest-accelerating production cars on the planet and Throttle House thought it would be fun to see which of the two is the fastest.
First, the figures. Driving the M5 CS is a 4.4-liter twin-turbocharged V8 with 627 hp and 553 lb-ft (750 Nm) of torque. Meanwhile, the 911 Turbo is powered by a 3.8-liter twin-turbocharged flat-six with an equally impressive 572 hp and 553 lb-ft. Both are all-wheel drive, have no electrification whatsoever, and come with phenomenal launch control systems.
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During the first drag race, the driver of the M5 CS gets the slightly better reaction and edges ahead of the 911 Turbo but as the race progresses, the Porsche accelerates off into the distance and takes the win.
The second race was interesting as neither driver used the cars launch control systems, significantly impairing their ability to get off the line at the same kind of blistering speeds that they can with them enabled. Nevertheless, the Porsche also came out on top during this race.
Last but not least was a rolling race. We won’t spoil the result of this one but like the first two races, it was close, and does suggest that BMW might have underrated its horsepower and torque claims for the M5 CS.