The levels and unlockables are at this site:
http://facebook.vdream.com/static/expansion_guide
If you can't see the site here are the levels:
1 noob2 licensed
3 licensed stripe 1
4 licensed stripe 2
5 licensed stripe 3
6 experienced7 experienced stripe 18 experienced stripe 29
experienced stripe 310 street racer11 street racer stripe 112
street racer stripe 213 street racer stripe 314 drag racer15 drag
racer stripe 116 drag racer stripe 217 drag racer stripe 318
autocrosser19 autocrosser stripe 120 autocrosser stripe 221
autocrosser stripe 322 club racer23 club racer stripe 124 club
racer stripe 225 club racer stripe 326 professional27 professional
stripe 128 professional stripe 229 professional stripe 330 rally
champion31 rally champion stripe 132 rally champion stripe 233
rally champion stripe 334 f1 pilot (20,000 vdi)
35 F1 Pilot stripe 1
36 F1 Pilot Stripe 2
37 F1 Pilot stripe 3
38 Master of Vdream (MoV)
38 Master of Vdream stripe 1
39 Master of Vdream stripe 2
40 Master of Vdream stripe 3
41 vDream Hall of Famer (HoF)