While this thread is now 9 pages deep, I'd weigh in that... HRP - your initial post is the spirit I'd hoped this thread might have taken when I opened the thread. Lots of screen grabs of cool cars, for sure. But I'm more interested in 'modern' shows and movies reflecting our interest in cars. (For 'modern' say 90s and up). Pulling a screen grab from a show made in the 50's is just too easy.
Any movie by Jacques Tati, I don't know if they've ever been dubbed in English, but he loved to include cars in his movies, that's a window on what was on the post war France roads. We can see quite a lot of US cars in French 50's movie, then I believe mostly after the US Army was asked politely to go back to it's country american cars started to phase out from the roads, unfortunately I think most have been junked since then.
Your right lots of really cool cars on Perry Mason, I did see Tod and Buzz pulling a horse trailer with the Corvette in the last episode I watched. Trailer had a horse in it too.