I just take the wheels out of other cars. Each car's only about a buck and I've found that the goofy fictitious cars (hot rod toilet, animal cars) have the best motors and pipes or spoilers. I'll buy one of 'em just for a scoop or a blower engine.
Each axle is held in with a kind of tension prong thing, and you just pry it out and put it in the frame you're building.
I start out drilling the rivets. Begin with a small drill bit and work up (it's a metal rivet surrounded by plastic in most cases, and can get ugly quick.
![](https://lh3.googleusercontent.com/fbwyHtzliH0qkPq1jG8CPb2777dD2WmXmhAgif7lUY8=w155-h207-p-no)
From here all the interior, glass and body pull apart and you can paint the interior and so on while you do the next step:
Then I dump the body in a jar of lacquer thinner and let is sit over night.
![](https://lh3.googleusercontent.com/xieg8olI5k9Pyr6t4ie0ZrR7iR2jDW5S1C_1qmnZspg=w157-h207-p-no)
Hit that with a wire wheel or brush, then knock yerself out with paint and customizing.