Welcome to the forum
Did you get a spec list for it? I see some mods have been done over the stock car as I don't think that came with black wheels, also maybe lowered but that's only going against my facelift
cupra and the front splitter isn't stock lol
Check all the seat bolster linings (I think as its a
280 they should have a white ish trim) they crack and tear quite easy.
I would Google the reg and see if any forum posts pop up lol
Looks in great condition, is there a pic of the engine bay? One would assume that isn't the stock
280 if trh dealer didn't do anything with it most Cupras had a stage one of they went into the mod game lol
Maybe post in the Mk3 section as you'll get more interactive responses from people as not everyone looks here.
Hope that helps