Caterham actually owns the complete rights for the 7. If Lotus wanted to build some, they would have to buy a license from Caterham...
To MXM: I actually wrote my dissertation about Caterhams and Westfields (Consumer behaviour study..) and while talking with them they did say that they have sold a few cars to Sweden and Denmark, none to Finland but they were willing to sell me one if I'd had the money. So maybe it could be legal here?