Not a fan of downsizing? Get the twin-turbo 4.0-liter V8 while you still can in the C63.
Itâ€™s a known fact by now that the next-generation Mercedes C-Class and S-Class in AMG flavors are going to adopt a plug-in hybrid powertrain. The reveal was made by Affalterbachâ€™s boss Tobias Moers last month in an interview during which he also confirmed plans for an amped-up hybrid GT to rival the Porsche Panamera Turbo S E-Hybrid.
In a separate interview, the very same Tobias Moers admitted the new four-cylinder 2.0-liter turbocharged engine (pictured above) powering the A45 and CLA 45 could be installed in larger models. Putting two and two together, weâ€™re not entirely surprised that Autocar is now reporting the new C63 could switch to an electrified four-pot.
Eschewing the twin-turbo 4.0-liter V8 of the current-gen C63, the new performance model from Mercedes could use an adaptation of the M139 unit powering AMGâ€™s compact cars. In those vehicles, it produces as much as 416 horsepower and 369 pound-feet (500 Newton-meters) of torque, and an electrified version could pump out even more muscle.
According to Autocar, the engine will allegedly boast a 48V integrated starter motor in the same vein as the one used by the larger inline-six M256 unit found under the hood of the CLS 53. In the swoopy sedan, the electrified component adds 22 hp and 184 lb-ft (250 Nm), but AMG is looking to upgrade the system and squeeze out â€œsignificantly more powerâ€ for the next C63.
Despite losing half of its cylinders, the C63 is expected to match the 503-horsepower of the current model in “S” guise while gaining 37 lb-ft (50 Nm) of torque to deliver 553 lb-ft (750 Nm). Even with the added hybrid hardware, the entire powertrain is expected to weigh less than the M177 installed in todayâ€™s C63.
Switching to a four-cylinder unit is not the only big change Mercedes-AMG is preparing as the C63 sedan, coupe, and convertible will employ a 4Matic all-wheel-drive system. Purists will at least take comfort from knowing a Drift mode similar to the E63â€™s will send all power to the rear axle by decoupling the front driveshaft.
The regular C-Class Sedan (W206) is rumored to debut at the 2020 Paris Motor Show next September, so donâ€™t expect to see the revamped C63 sooner than the second half of 2021. Once again, thereâ€™s also going to be a lesser AMG version, but likely not todayâ€™s C43 as Mercedes will introduce a C53 with a de-tuned version of the C63â€™s electrified powertrain.