You're very welcome!
Punch "Post Apoc" or "Apocalypse" or "Wastelands" into the blog's search function and you'll be drowning in post apocalyptica. We haven't done much lately, but it's one of the club's go-to genres.
I'll also suggest Nuclear Renaissance as a good possibility. If you've got 4+ players, I'd recommend giving each player only one vehicle, but it's a very nice system with a smidge more crunch than wastelands. Also, like Wastelands, it's free!