While both cars are exceptional super cars, my friend and I have this long running argument over which is better. Your opinion on only these two cars is wanted, we realize the R8 v10 & s65 AMG are better. Please don't assume the Benz is better because of the v12 or the Audi is better because its "handmade." However your opinions on the styling, exterior, interior, performance, handling, feel, etc is welcome. Just Don't make blatant unsupported statements or recommend other cars. Thanks!