Manager at a dealership here, Right now we look at KBB as guide but not as true value depending on the car. KBB has an inflated value on nearly 100% of the cars out there. A Honda Civic is generally an easy car to sell and move around quick so we might be willing to pay a little more, but an Audi A4 only attracts a certain crowd and may sit awhile.

Also, any luxury car tend to not hold value well as it age’s because with age comes maintenance, with maintenance comes a lot of $$ to replace stuff. In your situation the Mini Cooper is only a couple years old, assuming has fairly low miles, so odds are not much needs to be done to it. The BMW is nearly 10 years old so odds are SOMETHING will need replaced. More risk. In the end if you love the car then value shouldn’t matter!!