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Mercedes-AMG is making its most powerful V8 engine ever
The M178 engine has been in use since 2014

Mercedes-AMG is making its most powerful V8 engine ever

Aug 27, 2025
01:28 pm

What's the story

Mercedes-AMG is gearing up to launch its most powerful high-tech electrified V8 engine. The development comes after backlash over Mercedes's decision to replace the V8 with a four-cylinder engine in the latest AMG C63. The upcoming powertrain will be a natural successor to the "M178," which has been powering several models since its debut in 2014.

Enhanced capabilities

New engine to deliver more power and efficiency

The new V8 engine, which will be based on the AMG.EA platform, is expected to deliver more power than its predecessor. Although exact details are yet to be revealed, AMG Director of Vehicle Development Steffen Jastrow hinted that it will have a higher output than the 720hp peak, seen in models like the Mercedes-AMG GT Black Series. The new mill will also respond quicker to driver input with improved pedal response and better efficiency for upcoming Euro 7 regulations.

Long-term plan

Current-gen V8 will still be available for select models

AMG CEO Michael Schiebe has said that the production of this new engine will continue well into the next decade. However, for now, the current-generation V8 isn't going anywhere. The recently teased AMG GT Track Sport is likely to use an updated version of the M177/M178 engines. Schiebe also revealed that there are still customers who prefer a pure V8, and AMG plans to keep selling eight-cylinder cars as long as there's demand.

Uncertain future

Future of V12 engine remains uncertain

The future of the V8 engine in the next-generation C-Class and other models is still unclear. The lukewarm reception of the four-cylinder model has shown that enthusiasts still prefer bigger engines. However, despite these challenges, Mercedes is committed to keeping its V12 engine alive in select markets, even as stricter European emissions rules make it more difficult to do so.