That's my implementation for my Mini Cooper, it's a factory, or production line, that produces Mini Coopers.
It's made with thyme, it's kinda unstable and has some bugs, but can assembly "infinite" cars (as much as your computer can handle).
To make a car, press 0 in the numpad (don't just tap the key, press it deeply).
Arrow keys to drive the car (yes, it's driveable and has a suspension!).
Note: If you hold the '0', you may force the factory to skip crucial parts of the process, and probably will break it.
Please comment at any fail or bug that might (and will) present.
EDIT: OK, if it doen't work now I really give up on this.
I probably spent 10x more patience fixing it than building it
but it should (MUST) work now.
I also ajusted the suspension, it's more stable now and won't explode on bumps
Fixed textures problem
EDIT2: Changed BMW logo with Mini Cooper logo (thanks billybombill)