Just got my self on -04 2.2Direct Estate sold as 'Comfort' here in Finland. Plans after the winter are: lowering (around -40mm, H&R springs or coilovers) and so nice wheels. Some others stuff too, but other topic maybe..

I want wide wheels: how much can be stuffed in wheelswells?
Opel has here for example 8,5"x20" et35 wheel for sale for Vectra C in OPC line category. So in front 8,5" shouldn't be a problem, maybe 9" would go too? et around 30? How about in the back: 9,5", 10"....11"? What might fit without rubbing to metal?
I'm planning on some wheels with decent lip..

Anyone here who has experimented this with estate?