I can't think the seat number will be a problem - just say you took two out to make room for stuff. You CdP maches your vehicle.
The VIN number is more important - that is the stamped metal plate at the back of the engine bay on the bulkhead - or on the front above the rad.
Some borders may want to see that and compare it to your V5/CdP
Your V5 may show an engine number as well, but I believe it's the VIN that counts though others who've done Egypt recently may know better. I would have thought it's somewhere on the engine block but mat be impossible to see.
Ch
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