According to Autoblog, sources at Mercedes-Benz have claimed that the upcoming Mercedes-AMG E63 could produce “something in the range of” 600 hp. This power will come from a “next step” development of the 4.0 liter twin-turbocharged V8 currently used in the C63 and AMG GT. This 600 hp power figure is easily within the realm of possibility, considering the C63 can develop 503 hp with minor tweaks.
The current Mercedes-Benz E63 AMG creates 577 hp from its 5.5 liter twin-turbocharged V8. 600 hp wouldn’t be that much of a bump over the previous model and would still be considerably less than the 640 hp coming from the Cadillac CTS-V. So it wouldn’t be farfetched to think that the mad scientists at AMG could be planning on far more than just 600 hp. Power will also be sent through a 7-Speed dual clutch transmission and will likely power all four wheels.
The standard Mercedes-Benz E Class won’t be debuting until at least the 2016 Detroit Auto Show, so we won’t know anything about the AMG variant for a very long time. As we know it now, though, is that 600 hp seems to be the standard for all big luxury super sedans. The Audi RS6 is getting close, the BMW M5 Jahre Edition makes a flat 600 hp. So we should be seeing some seriously powerful super sedans in the next year or two.[Source: Autoblog]