Efficiency vehicles take many shapes as fanatics can choose from all kinds of physique types and drivetrain configurations. Take for instance the BMW M5 and the Audi R8, a giant and heavy luxurious sedan and a mid-engined supercar. One has a twin-turbo V8 beneath the hood whereas the opposite makes use of a naturally aspirated V10 mounted behind the driving force. On this case, the two-seater machine from Ingolstadt is a rear-wheel-drive model versus the xDrive setup of the speedy saloon.
Regardless of being vastly totally different, Carwow determined to line them up for a collection of drag and rolling races earlier than ending with a brake take a look at. Being the Competitors model, the pre-LCI M5 presents an enormous 625 horsepower and 750 Newton-meters of torque from its 4.4-liter engine. As for the R8 RWD, the NA 5.2-liter unit has to make do with 570 hp and 550 Nm since there’s no pressured induction.
One other main distinction between the 2 is how the engine’s energy is shipped to the wheels. The M5 Competitors makes use of an eight-speed, torque-converter automated whereas the R8 has a seven-speed, dual-clutch transmission. There’s additionally the problem of weight for the reason that BMW is roughly 300 kilograms (660 kilos) heavier than the Audi.
Courtesy of AWD, the M5 seemingly has a bonus off the road, however the R8 makes up for that with the faster response delivered by its naturally aspirated V10. At greater speeds, aerodynamics come into play and the Audi’s sleeker form permits it to succeed in greater speeds than the BMW. Whereas the R8 misplaced the primary drag race, it had its revenge within the two duels that adopted because of a greater begin that didn’t enable the M5 to achieve a big benefit.
Within the rolling race from 50 mph (80 km/h) with the vehicles in essentially the most comfy settings and the transmission in auto mode, the R8 steadily pulled forward and was the primary to cross the end line. Nonetheless, it was a distinct story within the second rolling race from the identical pace, however with the sportiest settings turned on and the gearbox in handbook mode. The M5 gained the duel by a big margin.
Essentially the most stunning consequence was within the brake take a look at from 100 mph (161 km/h) as we often count on the lighter automotive to win. Nonetheless, it was the BMW M5 Competitors that got here to a halt first, regardless of carrying round much more bulk than the R8.
Supply: Carwow / YouTube