After 7 years, the value of the car has gone nearly to the 40-45 percent of the original value and the car has covered a significant distance. You should firstly inquire about the engine from a trusted mechanic as a minor fault can lead to a big loss. Also check all the necessary parts like suspension and tires as they will cost a lot to be replaced after the deal. Also check for some major accidental impact on the car as it has a lot of impact on its value.