The Mercedes touring cars will be powered by a modified, 5.0-litre version of the 6.3-litre V8 currently used in the SLS AMG GT3 race cars. Erebus is paying AMG to develop the engine and other parts of the car.
Insiders familiar with the Mercedes project claim the E-Class V8 Supercars contender will set a new benchmark in terms of engineering and safety within the rules, and be highly competitive.
“This will probably be the best-funded team [on the grid],” a source told CarAdvice. “Erebus is investing significant amounts of money [into the V8 Supercars project].
http://www.caradvice.com.au/191998/mercedes-benz-amg-racers-enter-v8-supercars/



