How much faster does an Audi RS6 C8 really become when you start tuning it? In this ultimate stage comparison, a 630 HP stock RS6 Performance goes head-to-head with a 715 HP Stage 1 car, a 770 HP Stage 2 build and a 900 HP Stage 3 monster. Each setup represents a different level of performance tuning, from a simple ECU remap and intake upgrade to high-flow downpipes, upgraded hardware and heavily modified turbo systems.

The results are far from predictable. The Stage 1 RS6 managed a 10.94-second quarter mile at 129 mph, beating the stock car’s 11.22-second run, while the Stage 3 car suffered from problems and surprisingly managed only an 11.17-second best. With tuning costs ranging from around £4,000 for Stage 1 to roughly £10,000 or more for Stage 2 and significantly higher costs for Stage 3, this comparison raises the ultimate question: is more power always worth the money? For more content like this one follow us also on Facebook, Pinterest or Instagram!

BMW M5 vs Audi RS6 GT vs Porsche Turbo S vs AMG GT: DRAG RACE