http://www.carfax.com/car_buying/vin_cloning.cfx - You must protect yourself from VIN cloning if you want to purchase a car. By doing a VIN lookup, you will know if the car you are looking at is actually the one on file. By performing a V.I.N. search, you will immediately see what the make and model of the car is - or should be - as well as other details. Make sure you check VIN before you buy a car.