I never thought I could complete the game, even after the TT gold bug discovered. Somehow I gained a lot of R$ through TT which made me believe in completing the game. Most of the gain has been documented here: http://s5.photobucket.com/user/carman35/library/Real%20Racin...
I didn't have a lot of time playing the game. In the last week or so I did pushed hard and be able to get it.
Thanks to folks who discovered and shared:
- TT gold bug (Stig)
- DeLorean bug
- Auto pilot (Melbourne)