Wow, Audi's acoustic roof really makes this car quiet on the highway. It may be a bit odd, but I think the highlight of this convertible is the top. It's every bit as quiet as a folding hardtop convertible and you don't have to give up the entire trunk to retract the top. Aside from the potential security issues a soft top entails, why in the world would anyone choose an A5 coupe over the cabrio? I'd opt for the coupe if I were thinking of an S5, though.