Interesting thread...I never consider a car mine until its in my garage and paid for...
guzumping is against the law, but the buyer has to cough up heaps in legals to make the law work...not worth it...

It sucks but he needs to move on...
Its the risk of doing business...

I have been on the opposite side too where I have sold a car the guy has left a deposit and then wants it back in a couple of days time...meantime I have lost a couple of would be buyers telling them that the car was sold. This guy then abused me cause I wouldnt give the deposit back.

As far as Im concerned the car isnt sold until the full amount has exchanged. And I believe the seller has the "right of way" at all times because its his asset...esp when it comes to a car or house....