In an email today, Jeff mentioned a movie I had not heard of called DIRT (IMDB Link). Released in 1979, the movie follows a narrator around as he explores the wide-world of offroad racing. It’s got some especially great/scary clips of early auto racing. The rest of the movie shows all kinds of different offroad racing in the US during the late 70s (sand, water, hill climbs, baja, snow climbs, and more). One item I had hoped to see, but didn’t, was PNW racing, though I didn’t have time to watch every clip.
Currently, you can watch the movie for free via YouTube. However, you can also order a DVD from Turner Classic Movies (about $11) or from Amazon.com (About $6).
Here’s the first YouTube installment. At the end of each installment, there is a link to the following installment (10 total).
http://www.youtube.com/watch#!v=MfByldRKTo4