Hang on a minute. Your brother in law bought the car, any argument is between him and the garage, the garage will just say 'we never sold Mr X thecar' and they would be right. You need to take this up with BIL and get HIM to reject the car. If he has indeed bought it as a trade sale with a proper trade sale invoice from the garage then you may well be stuffed I'm afraid. But the fact remains that the garage do NOT have to fix the car as they never sold it to you, your BIL did.

Post 86