wot model is this
 

first part ov chassis number is GC8

full chassis GC8-050604 anyone shed any light

That's no help to us at all. It's not the "first part" of the chassis number either, it's the first three characters plus the last six.

If you want to ID the model we'll need the applied model code.

now edited

You need to put on here the code below the chassis number or vin number if you won't to be fussy .

That is not a full chassis (VIN) number. The VIN is a 17 character code which begins "JF1...", while the applied model code has seven characters and begins GC8.... It's the latter one that tells you the model.

Its a Jdm model he has GC8 and six numbers after .The uk cars have 17 vin number

Yes it's an Impreza Saloon 2ltr :thumb::D