With a twin-turbocharged V8 engine, the Mercedes-AMG C63 is one mean sport sedan but its replacement could be a very different beast.

The next-generation C63 has been spied, but what we really want to see is what’s under the bonnet.

That’s because it’s rumoured to be dropping its twin-turbo 4.0-litre V8 in favour of an electrified, turbocharged 2.0-litre four-cylinder engine.

Power outputs won’t be downsized, though, with the new C63 reportedly having a total system output of more than 372kW.

The current C63 S produces 375kW of power and 700Nm of torque.

Now that the new C-Class sedan and wagon have been revealed, next on the agenda is the debut of the AMG range.

A reveal is expected for later this year, with a local launch next year.

With the adoption of the electrified four-cylinder, the entire W206 C-Class range will use electrified four-cylinder engines.

That includes the upcoming C43/C53 AMG, which could borrow the A45 S’s engine and pump out 310kW of power and 500Nm of torque.

This prototype’s camouflage continues to conceal the expected AMG styling tweaks, such as restyled front and rear bumpers and the Panamericana grille.

The new C-Class family’s interior is heavily inspired by the S-Class and offers a choice of 10.25-inch and 12.3-inch digital instrument clusters and 9.5-inch and 11.9-inch touchscreens for the infotainment system.

The touchscreen is tilted towards the driver by six degrees and runs the second generation of MBUX, which debuted in the new S-Class.

It supports over-the-air updates and features a fingerprint scanner for unlocking.

MORE: Mercedes-AMG C news and reviews

William Stopford

William Stopford is an automotive journalist based in Brisbane, Australia. William is a Business/Journalism graduate from the Queensland University of Technology who loves to travel, briefly lived in the US, and has a particular interest in the American car industry.

Buy and Lease
Uncover exclusive deals and discounts with a VIP referral to Australia's best dealers
Uncover exclusive deals and discounts with a VIP referral to Australia's best dealers
Also on CarExpert