Gentlemen: Have line on black on black, 1990, 20V Quattro 90. 68,000 on the clock. Condition is very good to excellent. Would like collective wisdom on a fair price for this car. Have been looking for one in NJ and they are rare. Also, car has 14" BBS wheels, would the ride be better with 15"? Thanks in advance. 87 5CSTQ - 111,000 A great car, a great hobby!