I just threw on some BF Goodrich advantage sport all- seasons for $345 (mounted and balanced at Costco). I haven't pushed them to their limits yet, but when I do, I'll let you know. My Prime came with fuel saver tires that would squeal very easily around corners. I needed some all seasons and Costco was running a special. So far im impressed with them. It's supposed to be raining today so I'll give them a little work out on the way home.