I bought the car from a small time dealer (which has now been shut down).
The starter was going when I bought the car. Also, the valve cover gaskets needed to be replaced and the dealer was supposed to do an oil change before I picked up the car.
I drove the car for a month with no problems, then all of a sudden the heater core went($400). After that, I replaced the bad starter. I also discovered that whoever changed the oil before I bought the car had stripped the oil plug, so I had that fixed and also a new oil sending switch put in.
Only a month after that I came out of work only to discover all of my antifreeze sitting in a big puddle under my car. It needed a new water pump and a new radiator ($500). But I have to consider that the car has almost 130,000 miles on it and these things happen at this mileage.