How $16,000 Turns Audi’s 590-HP RS6 Avant Into A 700-HP Sleeper Wagon

Few cars match what’s on offer from the Audi RS6. It’s a practical wagon that also delivers a thunderous dosage of eight-cylinder excellence with a premium cabin to boot. However, one tuning firm – one which boasts a rich history of bettering even the best of the Audis – feels its found a way to improve upon the recipe.