Transcription: After you check out the exterior, take a look at the inside of the car. The interior can give you a good idea of the overall condition and how well the entire car has been maintained. Check the mileage to be sure the car hasn't been used too much for the price being asked. Today's cars average about 12,000 miles per year. Also check the service stickers on the door jamb or under the hood to see if the recorded mileage is consistent with the odometer reading. Check the condition of the seats, belts and carpeting. The upholstery should be clean with no serious rips, cracks or lumps. Lap belts an ...