Stock vs Stage 1 vs Stage 2 vs Stage 3! Today we’ve lined up four Mercedes AMG C63 S s to find out what tuning actually gets you for your money. We’re timing each car solo over the quarter mile, then going head to head in drag races and roll races to see how those upgrades stack up when it counts! With some seriously surprising results, does spending more actually mean going faster, and which stage gives you the biggest gains for your cash? It’s time to find out if the bang really is worth the buck! LETS GET IT!