I bought this car from Carmax and it only had one owner - and initially, it didn't have any problems. Then the engine started rattling and they said that I hadn't serviced the car regularly. I actually had the car serviced and oil changed regularly with documentation from my mechanics and even on Carmax. I immediately contact my mechanic (via the extended warranty program), and they found no codes were popping up upon a diagnostic check. That mechanic is pretty honest and he really had to look into it and found nothing in the beginning. There were some a few months later, so I had it checked again and he said the code popped up and that it required the replacement of the O2 sensor. Here I am, a month later and the white smoke is back. I am definitely outside of the time limit of the Lemon Law and I would love to file a class action law suit. Because apparently, I am not the only one.