I know it goes against every fibre in your being but read the manual. There's a lot of legal backside covering, but also some good info in there e.g. it tells you not to lift to change gear when using the CC system. It seems to have parts written by people who enjoy driving.
Sport mode is great, but don't be afraid of using non-sport if you're pottering round town or cruising, it's more comfortable for those times when you're not tearing it up and sport is only a button press away if quick changes are needed. There's lots of talk about it eating clutches, but IMHO that's only if you're pushing it all the time.
Oh, and keep the top down and make some noise!
: )