BMW, Audi and Mercedes-Benz have twin-turbo V8 engines of their own which they have placed in their performance models. These engines, models and companies have their own special attributes though and these are what we will be looking into today.
Audi 4.0L, TFSI Twin-Turbo V8
First, we’ll look at the V8 offering of Audi. The company has placed the 4.0L, TFSI, Twin-Turbo V8 in such cars as the S6/RS6, S7/RS7 and the S8. Those who have tested these vehicles attest to the smoothness and the power of the engine, stating that it is one of the best in the market.
This engine has 2 top-mounted turbochargers which are mounted within the vee of the engine. It also offers variable valve timing as well as direct injection. It’s certainly a smaller engine compared to others but it easily produces the same amount of power as others in its category. In the RS7, the 4.0L TFSI was able to produce 560 horsepower at 6,600 rpm. It also boasted 516 lb-ft torque at 5,500 rpm.
BMW S63TU Twin-Turbo V8
The S63TU Twin-Turbo V8 of BMW is quite famous and for a good reason. This 4.4L engine is present in many of the most powerful performance cars of the Bavarian company and has been considered a serious contender for the spot of the best in its class.
In terms of build and the amount of power that they can produce, it would seem that the BMW and Audi V8 engines are quite similar. The engine can easily reach 547 horsepower at 6,000 rpm. It also comes up to a torque of 504 lbs-ft at 2,000 rpm. That’s a lot of power right there and makes for a lot of cruising speed too.
Mercedes M157 Twin Turbo V8
Finally, we have the M157 of Mercedes-Benz which is certainly getting on in years. This engine is still pretty powerful though and easily competes with some of the newer builds. Unlike with Audi and BMW, the M157 5.5L, twin-turbo V8 doesn’t have the turbo parts on top of the vee and its twin-scroll turbo parts are not present. This makes it clear that this engine is a bit old-school. Still, the engine can dole out a lot of horsepower, though it can admittedly get a little low on power as it goes on, so don’t expect a lot of longevity from this one.