that would depend on the condition of the car, if the car has aquired easy miles e.g. motorway driving with a sympathetic owner the chances are the engine will have plenty of life left in it. Allthough some engines will have aquired hard miles such as driving on rough or dirty tracks lack of maintanence and various other unsympathetic driving styles, try and look out for the one or two owner cars and i personally would stay clear of any boy racer looking cars as they usually have been driven hard. Hope this helps.