Just another example of WHY you people should NEVER complain when we have FS forum seller requirements. NEVER EVER EVER complain about it. THIS exact situation is what we are trying to avoid. The sad part is that there are many like you unfortunately that we haven't even heard about too.
Sorry this happened to you. I would pursue this legally with him ASAP.
BTW, I know that you mentioned the Bill of Sale, but what about the title? Does it say "quattro"?
