I purchased a 2000 Toyota 4runner. Couple of years ago and still running great, although I did some minor repairs. One thing I learned when buying a used vehicle is that you have to do your homework or extra steps like getting your trusted mechanic to check everything for you. Spending at least $100 would not hurt to give you peace of mind, but this would not assure you that in the future nothing will happen. If you think differently, then just buy a brand new car.