it's funny when i bought my car, i have my friend, who is a mechanic, to go do an inspection for my car before i bought it... he says overall the car is in good condition...
next thing you know alot of problems started occuring... water pumps, thermostat, suspension, etc.
i think in most used cars that you buy it's always nice at first but then when you start driving it you begin to notice every little thing the car has...