Like the naturally aspirated 6.2 liter M156 V8 that came before it, the AMG M157 twin turbo motor—the V8 that powers everything from the E63 AMG to the SL63 AMG to the GL63 AMG—is destined to be replaced by a newer, more efficient power plant. But much in the way the M156 lives on in the C63 AMG and (in modified form) in the SLS AMG, so to shall the M157 endure a good while longer. But it seems the new S63 AMG and its coupe derivative will probably be the magnificent twin-turbo five-point-five's final use in a new production Mercedes-Benz.
That's the news from Australia's motoring.com.au, which heard the news from AMG head Tobias Moers. The 577 horsepower, 664 lb.-ft. output the M157 makes in the new S63 AMG is, according to Moers, at the outer limits of the engine's capability while still maintaining AMG's desired levels of reliability. Moers refused to confirm that the engine would find its way into any uses beyond the S63 AMG and the new
CL63 AMG S63 AMG Coupe, which seems like
Of course, as we all know, that doesn't mean AMGs will turn wimpy. As we've reported, AMG is already working on a new engine: a twin-turbo 4.0 liter V8 that will almost certainly be lighter and more fuel-efficient than the M157. And, considering the engine is supposed to be basically two of the CLA45 AMG's 355 horsepower 2.0 liter turbo fours jammed together, the new M177 will be more powerful than the M157, too. Last time we checked, 355 times 2 was 710, and 710 horsepower is 133 more than 577. [via carsales.com.au]