I'm torn now. When the offer was his car for my jeep, it was a no go. Now he has offered the car + $500 cash.

List of things that I noticed wrong
Key gets stuck - he has a replacement shifter just need to be installed.
Wheel Sensor needs replacement
Display on radio doesn't work
Rear passenger wheel mismatches the others. (From a newer Grand Prix)
Driver side tail light had condensation inside it