You cant go wrong with Blizzaks or Dunlop wintersports. Putting some weight in the trunk also helps.I am a new cts-v owner I purchased a 2007 this summer. Now it has snowed Chicago winters are ugly..this is my dream car that has become a nightmare. I sway and spin out...at fifty i've never been a frightened driver...What type of tires can I purchase to stop this madness. My 20 year old male son would rather drive his saturn. HELP!!!