on the mk6 transit van the rears arent to much of a problem you just get some hub adapters made up with out to many issues with the wheels sticking out the arch, but on the front with adapters most wheels stick out the arch by quite a bit, so the hubs need to be modified in some way. I have looked into fitting different alloys on the mk6 for a mate and it may be possible to remove the bolts that hold the brake disc to the hub and use wheel studs from the other side as i think the pcd on the disc to hub bolts are 5x108 on the mk6, but havent tried it as he is getting a local engineering shop to mod his hubs a different way instead now.

Im actually in the process of sorting out some spacer/adapters for the rear of my mk5 (smiley front) when i can find a engineering company that doesnt want stupid money. As a friend of mine on the transit forum is getting some front hubs machined up to accept the 5x108 pcd, when i get it all sort i will post up pics and also of my mates van when he aventually gets his front hubs back from his local engineering company for his mk6