For a 2000 year car I’m pretty sure you need one which takes a 2-stage air bag. Someone will confirm or put me right. Regarding how you “Dress” your wheel the sky’s the limit. Speak to Royal Steering wheels, they can use many different leathers or even put a “flat bottom” on your wheel, according to your wishes. I had a wheel done for my previous Z4 and it was the best mod. I did.
Tony.