Under the hood, the wizards of Affalterbach reviewed and corrected the 4.0L twin-turbo V8. The engine no longer uses a "cross crankshaft", but a "flat crankshaft" with a 180 ° crank pin setting (against 90 ° in the other configuration). This architecture makes it possible to switch the ignition from one row of cylinders to another, which further improves gas renewal. The new camshafts and exhaust manifolds are adapted to the new ignition sequence. The two Twin-Scroll turbochargers are mounted on bearings. In the end, Mercedes explains that its engine has gained in responsiveness and power! The figures are there
The block develops 730 hp! That's 145 hp more than the AMG GT R and 91 hp more compared to the AMG GT Coupe 4-door C63 AMG S! On the chrono side, Mercedes announces a 0 to 100 km / h dispatched in 3.2 sec and a 0 to 200 km / h in less than 9 sec! Transmission is always provided to the rear wheels via a 7-speed double-clutch transmission.
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