I've had this happen before........
I told mr salesfool that if he didn't agree to a firm price on tradein I'd find someone who would.
He told me, I wouldn't find anyone.
I then walked around the showroom and asked another salesman if he'd rather the commision over the dealership making more profit by reaming me?
Lo and behold first idiot comes over.... POQ sunshine.
No. 2. Made the sale there and then, agreed in contract to firm tradein up till 2 weeks after arrival of new car.
Proviso was put in as to trade in being 'as inspected', but I felt that was fair.
Merry Christmas,
Brian