One problem related to engine has been reported for the 2008 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Cadillac CTS based on all problems reported for the 2008 CTS.
My 2008 Cadillac Cts v6 di awd has a dangerous acceleration lag when you step on the gas to pass or get out of the way of a hazard in road. There is about a 1-2 sec lag between stepping on pedal and rpms moving, and about another second or so before any pick up happens. Doesn't sound like much, but no other car I have had, did this. At the speed of oncoming vehicles, a 1-2 second lag can mean a 30 - 60 yards of distance being traveled by an oncoming car or truck. That sight fills up rear view mirror fast. In my opinion, this is a serious design flaw and potentially death causing defect. This happens anytime I need quick acceleration, and is also happening in other cars I tried at dealership to see if it was just mine.