If anyone's missing from the list above, I don't have enough information about your relative pace yet, but we can fit you in. If you haven't Kerfuffled before, the cars you'll definitely need are:
10. Lancia Delta HF Integrale Evoluzione
11. Peugeot 208 GTI by Peugeot Sport
12. Volkswagen Golf VII GTI
13. Ford F-150 SVT Raptor
14. Toyota 86 GRMN
15. Ford Focus ST
16. Chevrolet Corvette Stingray Convertible (C3)
17. Renault Sport Megane RS Trophy
18. Toyota Supra RZ
19. Mazda RX-7 Spirit R Type A (FD)
20. Subaru WRX STI Type S
21. Honda Civic Type R
22. Nissan Skyline GT-R V-spec (R33)
If you think you'll be quick, add these:
5. BMW i3
6. Peugeot RCZ GT Line
7. Subaru BRZ S
8. MINI Cooper S 2005
9. BMW M3 Sport Evolution
If you think you'll be the best and everyone else is super slow, add these:
1. Suzuki Swift Sport
2. Mazda Roadster S
3. Alfa Romeo MiTo 1.4 T Sport
4. Mazda Atenza Sedan XD L Package
If you think you'll be slow, add these:
23. Mitsubishi Lancer Evolution Final Edition
24. Alpine A110 Premiere Edition
25. De Tomaso Pantera
26. Mercedes-Benz A45 AMG 4MATIC
27. Subaru Impreza 22B
28. Lexus LC500
If you think you'll be catastrophically outclassed by a field of uberdrivers, add these:
29. Audi TTS Coupe
30. Aston Martin V8 Vantage S
31. BMW M4 Coupe
32. Audi R8 4.2 FSI R Tronic
The Delta is NEW to this list. There may be one more new car coming, and if so the Mustang will give way for it.