2 things - for anyone interested in receiving all information as soon as its released please drop me either PM or email (firstname.lastname@example.org) with your name and email and I'll put you on the update list.
Secondly - I've been using the development car for the last 24 hours and, simply, WOW. The sound is just perfect. It's still BMW without being too race car, but still very aggressive. I've never been so cold driving with the windows down and heater on full, but it's worth it!