Funny you should say that. I just bought the entire series DVD collection of Cannon, and my wife and I are slowly watching them all in order. I didn't watch it much back in the day (I was in high school), and I haven't seen any of the episodes in over 40 years. We love the old cars, and we love seeing the guest stars of the day and looking up what they're doing now if they're still alive. Mr. Cannon with a '72 Lincoln Continental Mark IV.
My mother (if she was still around) would have loved that car, she owned quite a few Mark IV's, She loved them, I hated working on them so it all worked out. Funny she liked watching reruns of Cannon also.
The pics from the TV show reminded how much as a kid I loved watching the car chases on the shows in the '70s - especially when the wheel covers would fly off.
Just about every one of Martin's shows were sponsored by Ford, so you'd see the dealer 'flavor of the week,' all the way up through 'The Streets of San Francisco.'
He had the Mk. III in the first and maybe second seasons, then the Mk. IV; After that, I didn't get to see the shows anymore, as Mom had shows she wanted to watch.