Wonder if some smart arse can clear something up for me, as i can't seem to get my head round it ..........

Say for instance you have a car worth £10k-ish but you want something smaller and cheaper, say around £5k-ish mark.

How does it work with the £10k car and the £5k difference?

Also taking into account:

The £11k Finance outstanding on a £10k car.

Will it mean that the £5k difference gets taken off of the over all amount outstanding on the £11k finance, leaving only £6k finance outstanding?

Confused? I am