The Mercedes-AMG C63 is a tire-shredding monster of a car. Under the hood is a 4.0-liter twin-turbo V8 that produces 469 horsepower and 479 lb-ft as standard, and this increases to 503 horsepower and 516 lb-ft in the range-topping C63 S trim. All that power is sent to the rear wheels, making the AMG C63 extremely tail-happy.

The facelifted version of the current AMG C63 debuted last year with several styling changes, including a new Panamericana grille, revised air intakes, new tailpipes, a new rear diffuser, and restyled taillights. Mercedes is already working on the next-generation version of the sports sedan and according to Top Gear, there will be some significant changes that won't please some enthusiasts.

A source has confirmed to Top Gear that the next-generation AMG C63 is due to arrive in 2021 and will be equipped with a Drift mode like the E63, which deactivates the front driveshafts for when you're in the mood for some smoky sideways driving.

Top Gear also claims the C63 is likely to retain its twin-turbo 4.0-liter V8, but power will likely be increased to compete with the new BMW M3 that's coming next year. The new M3 will share the new 3.0-liter twin-turbo straight-six used by the X3 M, which produces 503 hp in the high-performance SUV. The next-generation C63 S, on the other hand, is expected to produce 542 hp, which would be a respectable increase over the current model.

With all-wheel drive and a multi-clutch transmission, the Mercedes-AMG C63 S should be capable of doing 0-62 mph in around three seconds. AMG boss Tobias Moers said last year that the C63 S will be a hybrid, but Top Gear believes this powertrain is being reserved for the upcoming mid-range Mercedes-AMG C53.

One thing seems certain though: the next-generation Mercedes-AMG C63 will not be offered with rear-wheel drive. It makes sense since BMW M is also switching to AWD to compete against Audi Sport, although rumors suggest there will be a pure RWD variant of the BMW M3 to keep enthusiasts happy. Hopefully, the C63's all-wheel drive system and selectable drift mode will offer the best of both worlds.