Both versions will receive the same engine. A large V6 which produces over 350 bhp. With this amount of power it should be able to compete with the Z4 M and the SLK55. If you buy the car for its handling just go for the Coupe version, a convertible usually steers a bit less, due to the higher weight of the car and a coupe is stiffer. You won’t buy a convertible to go fast around corners, you just want to cruise in it ,with the sun shining on your head. It must be great to drive the TT RS convertible on a small mountain road. Every time you put the throttle down you hear that superb sound. The sound will bounce back from the mountain sides which must be great to hear. Looking at the pictures it looks like a superb car, a proper Audi, modest looks and great performance!