Hi Mate

May be so but if it's build up and registerd as a "sierra 3dr cosworth" on the book but won't have a ford chassis Number

it will have a DVLA chassis Number thats how you would tell

there are loads of cossy's that were built up from spare parts and registerd as cossie and none of them will have a ford chassis number

some are obvisouly bought and not registerd untill later on

marco