Since my Forza 3 screen shots were deleted ive decided to post my concept drawing of the designs that eventually ended up on the cars.

Here we start with a BMW M3 which i drew for  coyote_snack This is the back view which shows the radar sensors in the bumper and the close-to-authentic German license plate.

I like how it came out and BBF himself liked it too!

Forza Morotsport 2 version of this car is on my DA

http://convoydavenport.deviantart.com/#/d32fgi3
http://convoydavenport.deviantart.com/#/d32fgkw
http://convoydavenport.deviantart.com/#/d32fgo9
http://convoydavenport.deviantart.com/#/d32fh3m

Art ©  convoy
M3 © BMW Motorsport