I am looking to buy a used car that is in a good condition and only a few years old and was thinking of going to my local motor vehicle auction. However, I don't really want to spend more than $7000 and was wondering if anyone could tell me approximately how much an automatic small car would go for at this sort of auction(in aussie dollar)? My ideal car is a corolla. Or do you have any other tips on finding a good quality car for a great price?