Just like we check everything before investing our money and after full observation and satisfaction we all invest our money at a good place. just like that people have not to be in a hurry to buy a used car. some of the tips before buying an used car are
check all the authorised papers of the car
check if the car is fresh or an accidental
take the car to the company and check the service record
the car must have all the genuine parts if any of them are changed
check the police record for security purpose
and lastly take a valuation from 2 3 car dealers
every point effects the value of the car so be very watchful person before giving your money to buy an used car.
BEST OF LUCK!