Although all-wheel drive can be an advantage, it can also increase weight.
The BMW M3 transforms sedans into performance pretzels. This is the latest iteration. You can choose between rear-wheel-drive or all-wheel-drive xDrive for the hotter M3 competition. Although it might seem like a small difference, is it noticeable on the track or not? We have a new Carwow video that pits two M3 Competition models against each other in drag races.
BMW’s twin-turbocharged, 3.0-liter inline-6 engine produces 510 horsepower (380kilowatts) as well as 479 pound-feet (475 Newton-meters) torque. Both cars also have eight-speed automatic gearboxes that route their power. The only difference between the spec sheets is the weight. The xDrive model weighs in at around 110 pounds (50 kg) more than the RWD. The xDrive model is also a bit more expensive.
The extra grip of the xDrive is sufficient to overcome its extra weight in all three standing-start races. The xDrive launches faster, while the RWD M3 begins in second gear for maximum grip. The xDrive was able to complete the quarter-mile in just 11.3 seconds. The RWD sedan was just a little slower at 11.6 seconds. Both rolling races are somewhat equal with the RWD model winning a pair of wins. It can pass the xDrive at 140 miles per hour (225 km per hour).
One event was won by the lighter M3 Competition – the brake test. Although it was able stop slightly faster than the M3 Comp xDrive (but only by a little). The final event was a great example of the 140-lb difference. Although all-wheel drive may be a turnoff for some, there are performance advantages if you choose to use it. BMW offers a more traditional option with rear-wheel drive.