Post Apocolyptic Cars Painted For Machinas

I bought Machinas by 2 Hour Wargames recently so I've been painting some cars to use in the game.

I took my daughter to Wal-Mart and she helped me pick out some cars to buy. Wal-Mart was selling these Hot Wheels for 94 cents each making them nearly free. My daughter picked some of these out as you can tell because I don't remember seeing anyone using a Lotus Esprit in Mad Max.

I didn't have a clue on how to paint them to look like rusty old buckets but I found a great tutorial on a blog called "20mm and then some" you can click here to see the tutorial. The cars he painted in his tutorial came out better then mine but I'm quite happy with how they turned out.

The car on the right had an orange bottom and it looks like it's glowing underneath. 

I'm not sure if I want to mount them to a base or not, basing would help keep the cars rolling all over the table. I also don't know if I want to add guns to the cars, I like how they look now but I also think they'd look good with some weapons and accessories. If I do decide to add some stuff I don't know if I'd try and make them myself or buy them from somewhere.