2 things i dont get from the post
you bought the car new in 06 and you are now
posting about this in 2013
you bought the car recently with 6 year old tires that are worn and complaining about hydroplaning...
so you can sue the seller for selling a car with summer tires without desecration that you live in a winter climate making the car very unsafe
I got about 1 year on my cheap summer tires before they were down to the wear bars