Are you sure it was actually in good condition at the time of purchase? I just read so many stories about situations where sellers rolled back mileage or didn’t mention repairs, replacements and all that, which were done not through official services but third-party shops. I hope you did a VIN report before buying? I used FAXVIN last time, it’s cheap and quick there, and the data is from official resources. Besides that, a mechanic’s inspection is always necessary when you’re buying a used car.