I'm looking at two 2006 Cadillac CTS's for the same price. One has the 3.6 and the other has the 2.8. The 2.8 is in black, which I love, with just over 19k miles and sunroof and appears to have been taken a little bit better care of, while the 3.6 is bronze color, not my favorite, with only 11k miles and it does have the bigger engine. I've run Carfax and Autocheck on both vehicles and the black comes back perfect while the bronze reports a minor accident apparently while in original dealer possesion. It still scores a 92 on Autocheck which is pretty good but the wheels have some road rash and under the rearend there is some surface rust on the springs. I've been searching here and the general consensus seems to be that the 2.8 isn't powerful enough to haul around the CTS and some even seem downright dismissive of it. Both are $16,999 which seems pretty good but I wanted some input as to how much I'll regret it if I get a CTS with the 2.8. Thanks for any input either way.