You need to be very very careful running 888's on a road car. I have some experience from previously owning a westfield.
Things you need to look out for/be aware of: -
Wheel bearings/suspension bushes will take much more punishment due to massive amounts of grip
Oil surge/starvation problems, not sure what the sumps are like to the GTI/ED30 with regards to baffles/gates but under heavy braking/cornering you may suffer from problems with oil flow.
Other than that they will wear pretty quickly but will offer awesome grip, in the dry
