Last week, we found out that Vuk Manufaktur in Austria is V8-swapping the current 4-cylinder C63, fixing the egregious mistake AMG made by halving the cylinder count on its performance sedan. But there’s a big caveat, because the swap ditches the hybrid powertrain, and in turn, drops from 671 horsepower to 500. Is a 171-hp drop in output worth getting the V8 noise back, and would you do it to your C63?