The RS5 is powered by a 2.9-liter twin-turbo V6 with 444 horsepower and 443 lb-ft of torque. The Audi's V6 produces more power than the BMW's 3.0-liter twin-turbo inline-six (425 hp), but less than the Mercedes'
4.0-liter twin-turbo V8 (469 hp). The BMW is available with 444 hp with the Competition Pack, but at a cost of $4,750 over the base price of $68,700. Likewise, the C63 can be had with 503 hp, but for $75,500 compared to the base car at $67,500. It is also important to note the Audi is the only car available with AWD (either standard or optional). This may not mean much to enthusiasts who like to do burnouts, but it could help the RS5 sell well in cold climates.