The next-gen models could be powered by a hybridized 4.0-liter V8.
Dubbed the M157, AMG’s 5.5-liter twin-turbo V8 has apparently reached its potential in therecently unveiled S63 AMG. That’s according to AMG boss Tobias Moers who told motoring.com.au the 585 hp and 664 lb-ft of torque it develops cannot be increased without threatening reliability. The AMG variants of the S-Class, due out in the next three years, and refreshed CLS63 and E63 will probably the best last to get the M157, which first appeared back in 2011.
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