Can you get the falkens Ziex ZE 512. You can take what it is worth but I think they were top rated at consumer reports. I like the 17s I got so far. They are so cheap I was considering them as the new tires for the 15s for my wifes mystique. Only concern is winter snow driving.
http://www.discounttiredirect.com/direct/findTireProductCategoryDetailBrnd.do?tpc=FALHH3&tp=Passenger%2FPerformance