I found some of the missing cars for the Rockford Files:

1. 1968 Buick Riviera ep. 1.22
2. 1973 Buick Riviera ep. 1.15
3. 1973 Cadillac Coupe DeVille ep. 1.18
4. 1973 Cadillac Fleetwood Eldorado ep. 6.07
5. 1974 Cadillac Fleetwood Eldorado ep. 1.09
6. 1973 Cadillac Fleetwood 75 ep. 1.20
7. 1963 Chevrolet Nova ep. 1.12
8. 1971 Chevrolet Nova ep. 1.19
9. 1974 Chevrolet Nova ep. 1.08
10. 1974 Chevrolet Nova ep. 1.14
11. 1972 Dodge Charger ep. 1.21
12. 1975 Ford Econoline ep. 1.12
13. 1965 Ford Falcon Wagon 1.19
14. 1975 Ford Granada ep. 1.18
15. 1974 Ford Gran Torino ep. 1.08
16. 1975 Ford Gran Torino ep. 1.20
17. 1970 Ford LTD ep. 1.12
18. 1972 Ford LTD ep. 1.09
19. 1974 Ford LTD ep. 1.09
20. 1974 Ford LTD ep. 1.11
21. 1974 Ford LTD ep. 1.14
22. 1975 Ford LTD ep. 1.11
23. 1975 Ford LTD ep. 1.18
24. 1975 Ford LTD ep. 1.21
25. 1975 Ford LTD ep. 1.23
26. 1972 Ford LTD Country Squire ep. 1.20
27. 1974 Ford LTD Country Squire ep. 1.12
28. 1960 Ford Thunderbird ep. 1.22
29. 1961 Ford Thunderbird ep. 1.22
30. 1963 Ford Thunderbird ep. 1.22
31. 1974 GMC Sierra Classic ep. 1.08
32. 1977 GMC Sierra Classic ep. 5.22
33. 1971 Honda 305 Superhawk ep. 1.15
34. 1975 Lincoln Continental Mark IV ep. 1.22
35. 1975 Lincoln Continental Town Car ep. 1.23
36. 1979 Lincoln Continental Town Car ep. 5.22
37. 1974 Mercedes 450 SEL [R107] ep. 1.08
38. 1975 Mercedes 450 SEL [R107] ep. 1.18
39. 1975 Mercury Marquis Brougham ep. 1.18
40. 1975 Oldsmobile Cutlass ep. 1.22
41. 1974 Oldsmobile Toronado ep. 1.20
42. 1969 Plymouth Belevedere ep. 1.14
43. 1970 Plymouth Fury ep. 1.20
44. 1974 Pontiac Esprit ep. 1.00
45. 1975 Pontiac Firebird Esprit ep. 1.11
46. 1978 Pontiac Firebird Esprit ep. 4.01
47. 1975 Rolls-Royce Silver Shadow ep. 1.14
48. 1973 Volkswagen Sedan [Typ 1] ep. 1.23