It does sound suspicious but with the right questions, you should be able to dispel any suspicion. Asking if the car has been previously sold? (Don’t be afraid to ask to see the title.) Or if the car had been titled or registered? Was the car in an accident or fender bender? Or was there any body work done on the car?
There is $2,750 cash incentive in certain states on the Quest. That may be part of the discount. Even if the answer is yes to these questions, the fact they are discounting the vehicle by $9k may be enough to make it worthwhile. But if you don’t like their answers or don’t feel they are being honest, I wouldn’t buy it.