I've got the Firehawk Indy's as well, but in 17" form. I like them pretty well too. I got them because reviews on TireRack said they have a bit softer ride than other summer tires. My H&R springs are just a tad too stiff for my taste so every little bit of comfort added back in helps.
I'm taking my contour into the shop Friday to diagnose a high rev. It idles about 600 rpm high, and the rpm hangs between shifts. I tried the throttle hang fix and it didn't quite fix it all the way. Replaced the IAC, but no dice. Now thinking it could be related to the cruise control, as that recently stopped working and the interwebz says those two things are commonly related. Here's to hoping!
Also getting some paintless dent removal done while at the shop, and having my 16 year old 17" Konig Tantrums refurbished and straightened out. Who likes to spend money on a 20 year old Ford Contour? Oooh, pick me, pick me!