I am currenly restoring a 2WD crystal blue Sierra which I have owned for about 4 months now.
When taking it to pass the MOT a few days ago, the technician noticed that the VIN number located in the bottom under the passenger seat have been cut out and welded in again. Most likely due to a repair sometime in the past.

Here in Denmark, the MOT will not pass when this has happened without written approval from the MOT BEFORE reparing the VIN number area and since it is not me or the previous owner that has perfomed the repair, we don't have any form of proof or written authorization to perform the repair.
They now require me to be able to PROVE, that this Shell is an original SIERRA COSWORTH 2WD shell and not an ordinary Sierra Sedan Shell which has gotten a Cossie conversion. They suspect that the shell is just an ordinary Sierra which has gotten a VIN number from a Cosworth and then all the parts and engine fitted.

Is there any way to tell the difference on the shell between an ordinary Sierra and a Cossie without the VIN numbers ?
The MOT people will not accept the one in the front of the engine bay alone ... both have to be in perfect condition and un-touched or it will fail.