AMG has played with smaller engines in the recent past, controversially swapping the V8 out of the C63 for a four-cylinder ...

The company basically binned the car's stock high-output 2.0-liter biturbo-based hybrid powertrain—battery pack and all—and swapped in an older version of Mercedes-AMG's latest 4.0-liter twin-turbo ...

Turbocharged four-cylinders certainly make ample power, but Mercedes is committed to sticking by bigger cylinder counts.

Watch the Mercedes E63 AMG W212 unleash its full power with an intense launch control start! This 2014 V8 Biturbo beast ...