IMHO i really dont like the look of those REPLICA wheels! i dont think they look as good as the real ones, i have a gp on order so im not confused, just think they are a bad copy.
Besides, i would never buy a copy,wouldnt really trust my life with them! They prob weigh a ton therefore affecting the handling of the car.
For £900 you could do a lot better. Take a look on here:-
http://www.topgear.co.uk/acatalog/alloy-wheel-tyre.php
hope you find this of use!!!