AMG prepping four-door Black C63, to challenge Ferrari FF?

Mercedes-Benz is still running the horsepower race with huge engines shoehorned into small cars.

This time they found a 6.3-litre engine that could be forced into the engine bay of the four-door C-Class and turn it into a Ferrari FF challenger as the fastest family transporter. This one actually has a boot but no all-wheel drive.

The four-door version is a further development of the coupe variant and is expected to match the two door for performance.