I had a 2005 CTS, but traded it in on a reliable car, a Honda.
I loved my CTS.
It was a beautiful car, but at about 60,000 miles it started burning oil. It had no drips or blue smoke.
They car was sounding weird and I had my husband check it.
It needed 5 quarts of oil.
There was no warning, or light.
The catalytic converter went out in it twice in a year and a half and then I started having a misfiring problem.
Whenever I was going up a hill, or had to accelerate fast, my whole car would jerk and then my engine light would start flashing.
Beautiful looking car, but looks only get you so far.
It was a major lemon and I'd never buy one again!!!!
The exterior and interior and beautifully designed.