Use the 17" rims . . . greater range of tire choice and if you decide to upgrading the brakes you have the room to do it. If you would like an all season tire, I can highly recommend the Bridgestone RE950's in 215/45 size ($135 ea). These tires are nearly as good as a dedicated dry tire, but also has excellent wet traction and a snow rating. If you want something for warm weather only I can recommend the Firestone Firehawk SZ50 EP. Very good dry and wet traction and decent tread life. If you want the ultimate in a dry traction tire, look at the Bridgestone S-03 Pole position. Michelin Pilot Sport is also a good tire, but is probably the most expensive of the group. Good luck!

Jeff Stevens