BMW / Bayerische Motoren Werke

I purchased a BMW 320i from this dealership on 9-20-2019. Less than 2 weeks later I had it appraised and found out it had been wrecked on the car fax it flat out says Damage/accident on the front page. This dealership uses autocheck rather than Carfax in which is a cheaper database and doesn't show near the information that Carfax does. I quickly went to the dealership and sent an email to the owner which is Suntrup. Nobody would take responsibility for this. Not to mention this autocheck they use didn't show work that had done in their own dealership in August which was it failed emissions back to back twice, oddly enough the dealership acted as if they had no clue about it and it didn't show up on auto check but showed upon Carfax. We purchased the car for $19, 901 on 9-20-19 sold back to the dealership as they acted like they did me a favor for taking it back for $17, 200 on 10-10-2019. Dealership signed a letter stating they know about the damage on Carfax etc, they are unbelievably selling this vehicle on their lot currently as no damage and 1 owner. I am the second owner and have a copy of the title to prove it. A friend emailed the dealership as an inquiry to this vehicle and was told Carfax and autocheck are the same thing, then why didn't it show up a wreck amongst other things. VIN: WBA8E5G58GNU21896.