Oil sump? Under the engine? That's a bit weird, but also true. Merc's all-new GT doesn't use the M178 dry-sump V8 of the original, but the M177 derivative. Fret not because it's a hand-built engine as well, assembled with pride in Affalterbach by the AMG go-faster division.
Differences over the first generation don't end here. Rather than a dual-clutch transaxle, the 2024 model prepares to pounce with the AMG Speedshift MCT 9G. As opposed to the torque-converter Mercedes 9G-Tronic, this fellow uses a wet start-off clutch to reduce curb weight and for better throttle response.
Integrating a composite aluminum space frame with a self-supporting structure, the second generation further sweetens the deal with 4MATIC+ all-wheel drive. 4MATIC+ is AMG's way of branding the 4MATIC all-wheel-drive system, with the + standing for both performance and the possibility for the driver to select rear-drive mode for kicking the tail out more easily.
A 2+2 instead of a strict two-seat affair, the 2024 model is expected with a choice of four-, six-, and eight-cylinder lumps. We've already touched upon the M177, a hot-vee V8 that powers the SL 55 and SL 63. Lower down the spectrum, there is a case to be made for a non-AMG sixer and a true AMG four-pot.
The lesser engine is the M139 of the SL 43, the only Sport Leicht from the R232 generation without all-wheel drive. In this application, it belts out a respectable 375 horsepower at 5,500 revolutions per minute and 354 pound-feet (480 Nm) at 2,250 revolutions per minute.
M256 is the Stuttgart-based automaker's codename for its latest inline-six engine, a turbocharged unit that – as mentioned beforehand – isn't an AMG design. The mad professors in Affalterbach may work their magic on it for the E 63, and in this case, the AMG-tuned M256 may carry over to the GT with hybrid assistance.
In the SL 55, the M177 cranks out 469 horsepower and 516 pound-feet (700 Nm) at full chatter. Step up to the SL 63, and the twin-turbocharged V8 also improves to 577 horsepower and 590 pound-feet (800 Nm). Already spied time and time again, the range-topping GT will come in the form of a plug-in hybrid M177 with – fingers crossed – 831 horsepower and 1,033 pound-feet (1,400 Nm) of torque.