I have used a RAID steering wheel for years, and love it - the only downside is cost - when I bought mine the exchange rate was very favourable, but things have changed. I bought mine directly from the manfacturer in Germany, for about half the price being asked in the UK.
I have been told that the airbag belongs in the Ford Fiesta, which is probably a good pedigree! RAID supply wheels to lots of high-end manufacturers, such as Porsche.
I find it a lot more comfortable than the original massive M type, the strange shape of its rim and hard plastic bits leaving my fingers aching after a long run. The only downside is that the horn buttons are not very tactile, and that many people get excited that it does not have a BMW logo in its centre. On the other hand it has an airbag (single stage) and is TuV type approved. It does not obscure much of the speedometer, but leaves the usual speed limit levels visible - however, for a six-foot plus driver this may be a problem.
