I am wanting to purchase the new 2008 CTS but noticed a problem already with the vehicle. I have test driven several new 2008 CTS's and they all exhibit a major and detectable shimmy when driven on the freeway in speeds over 58mph. I have spoken to a dealer about it and they are trying to figure out what's wrong with the vehicles. I'm wondering if anyone else has noticed this problem. It's definitely something you will notice when driving on the freeway and I know it's not coming from the road. I have a new BMW and test drove my vehicle in the same area I drove the new CTS and my vehicle exibited no shimmy at the same speed or shake on the freeway. Please let me know if you are having the same problems. I hope GM gets this handled. I have never owned a GM product and am getting a little leary about buying the new CTS. I might stay with imports. Please advice.