General Discussion

The same VIN number is often found on doors and fenders too (none of which are visible). The VIN number shows up on major electronic components in the vehicle too. But, you have to access it through the onboard diagnostic port (OBD port) with a code reader or find someone who can hack into the vehicle's communication system. NPR had a story a few years back where someone hacked a Toyota Prius and was able to turn it remotely and shut it down as it was being driven. The police also have electro-magnetic pulse (EMP) devices that disable the ignition systems on vehicles. But you rarely hear about these devices being used.

By-the-way, it is possible to change the vehicle's VIN number in the computer and on-board electronics (have done it myself to solve some vehicle communication problems after swapping out the vehicle’s engine computer).