Just traded a very troublesome 08 for 2010 CTS. Car is identical inside and out except for a few glitches. Driver auto seat movement doesn't work unless Driver 2 button is clicked each time, to move seat back. To move forward, must click Driver 1 button. Doors automatically lock, cannot open, with motor running, except to click Unlock feature.
Exterior appearance, although 3 years of the same thing is too much. Like the choice of interior colors in 2010. I now have black and shell in red car. Steering wheel and gear shift are upgraded.
Time for an exterior design change. Feel like I'm driving same '08. Move interior Trunk Opener button to more visible and handy place, to the dashboard. No one but owner can find it on the bottom of the armrest. Widen storage space on doors one inch, add more to glove compartment & dash cubbyhole