advice on wheel treads

bearing in mind that ive only had the game for just over a year now!!,ive just noticed that the mclaren is using bridgestone treads instead of michelins whilst using the mclaren wheel band with michelin on.

ive got type 1 enabled in gp4edit but the only way to get the right michelin treads is to make it use michelin in team editor,but i lose the enkei rims(default gp4 rims not 3D).Not a big deal but just wondering if this is just one of those silly bugs.