Searching through an rfactor modding forum, I found this. These are Grand Prix Classic’s review of the 1970-1988 seasons! There’s like 20 hours of footage here and commentary is really good and informative. Since I wasn’t alive during these time finding this was about the best thing thats ever happened to me xD.
Anyway, just download the divx plug in and you can watch all of them. And it saves the reviews so you can view them offline later too. Enjoy!