I'm looking at those tires as well and been reading good compliments on grips. I'll just finish installing the shocks from 4Wheelonline onto the truck and we'll start working on the 3. Will consider Zeon RS3G1 as the next tires.I am using the Cooper Zeon RS3G1 on both my '04 3 and my wife's S60 Volvo. The Mazda has 215/55 16's. They are an all season performance tire that is much quieter than the Goodyears I was running before, especially when hitting a hard corner. I have yet to hear the dreaded screech that announces your heavy foot to every Officer within earshot. I push them pretty hard and have yet to find the limit of traction. I'm thinking that I'm going to have to do some track time to find that point.
I like 'em and will buy them again.