Mercedes, Porsche, and Jaguar are just a few of the automakers whose racing engines have also showed up in cars meant to be ...

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

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 ...