I live in Denver, Colorado and have a 1991 90 Quattro (20V) that I've owned since 2001. It's generally original/unmodified and has approximately 253,000 miles on it and it and continues to run great, and burns no oil.

Can anyone advise me on how much the car might be worth, and the best way to sell it? I absolutely love this car, but I am running out of room as I've moved to a new house with much less driveway space.

Thanks in advance