I see a car on a forecourt that I like the look of, my car is worth a little bit more than the one I see, say £500-£1000 more, How does that work with the part-exchange bit? would they do a straight swap? Or would they offer to buy mine a lot less and I pay the difference? (which I wouldn't). Or would they be paying me the difference? (I doubt it)
Mine is a vauxhall and the one I have seen is a Ford.
If your car is worth £500-1000 more than the car you want then the garage will probably take your car in PX and say you still have to pay £1000-2000 on top.
PX values are stupidly low, you'd be better off selling your car privately and then buying the other car.
Never actually tried that but at a guess I'd say that as they are in the business of Selling cars, not Buying which they would be doing under those conditions....they wouldn't be interested in a "deal" with no cash involved such as a straight swap.
Who told you the value of your car..the part exchange value that is.
Only way is to get down there and ask....they might laugh you off the forecourt but on the other hand you might get a surprise...