This frustrating situation can be avoided by getting your car inspected by K.A.B. before you buy it. K.A.B. offers a free visual inspection that will alleviate your concerns. For a reasonable price they offer two more levels of inspection. Money well spent considering the potential alternative.
There are other reasons for a car inspection.
Peace of mind. Even if it turns out that the car is a peach - nothing at all wrong with it and nothing likely to go wrong, it's still a new car to you and you are not familiar with its sounds, driving feel and other little idiosyncrasies. Having a professional mechanic look a possible new car over will give you reassurance when you hear or feel things that you can't identify.
Bargaining Position. Even when you find a car you really like, what you will ultimately pay includes the cost of initial repairs. K.A.B. can help you identify those repairs and give you an accurate estimate of those costs. These can often be helpful in negotiating with the seller on the final purchase price.
Seller Credibility. If you are selling a car, having an inspection report from a trustworthy third party mechanic will put your car ahead of many others a buyer may be considering. It can also give you a chance to deal with minor repairs that may tempt potential buyers to negotiate for a reduced price.
Regardless of the reason(s), a pre-purchase inspection is a good idea. With the pricing offered at K.A.B., there are only good reasons to take this pro-active step.