[NoMoGMPG]

This is what people don't understand about arbitration hearings. If the arbiter believes the plaintiff or defendant (GM) is being unreasonable (which IMO you are somewhat) they will find against you and that will end your ability to go any further. In other words, you will be stuck with the vehicle you hate, the payments, plus there won't be a dealer that will touch the vehicle as long as you own it. The offer GM made was a good one, what they expected was a reasonable counter-offer or exactly what you said to them. That way they can say they attempted to be reasonable, you were not, and they prepared their defense accordingly.

IMHO, you have just screwed yourself, unless you walk in with a different attitude and are willing to accept that you did indeed get pleasure and/or business from the vehicle and that that is/was worth something.

Dave