It can be found in many locations on the vehicle.
This is from the following:
http://www.free-vin-check.com/about_vin_numbers.htm
The locations of vehicle identification numbers (VIN) vary but the following are the common places to find them:
Firewall of the vehicle
Radiator Support Bracket
Dash by windshield
Left hand inner wheel arch
Steering column
Guarantee & Maintenance Book
Machined Pad on front of engine
Drivers door or post on passenger side
Component parts as listed above -eg- engine, frame, etc.
Later model years most common locations of the VIN:
Left instrumentation panel
Dash plate by window
Drivers door or post
Firewall
Black Lingenfelter Lux