Mercedes-Benz can’t continues to leaking information about the upcoming AMG GT sports coupe like a smartphone company, but this latest is one seriously big chunk. We got some audio a few weeks back in a teaser, but the clip linked below reveals technical details about its twin-turbocharged, 4.0-liter V8 called the M178, including its power and torque figures.
Mercedes claims that the M178 cranks out an impressive 503 horsepower and 479 pound-feet of torque. A narrator also explains in very carefully enunciated English some of its other attention-grabbing features, like a dry-sump lubrication system and turbos in the V between the cylinder banks. Compared to the original, standard SLS AMG that the AMG GT is replacing, the new engine is down 60 hp but has the same amount of torque. The new GT is smaller, though.
This same engine is also heavily rumored to show up under the hood of the next-generation C63 AMG to replace the current 6.2-liter V8. Assuming the C-Class has the same tune of the M178, it would have nearly as much power and more torque than the current C63 AMG Edition 507 model. We’ll have to wait until the Fall for more information, but for now have a look below.