2008 Cadillac CTS 4dr Sedan w/Direct Injection (3.6L 6cyl 6A)
Owned my 2008 CTS 3.6 liter luxury edition for two years. No issues except a headlamp replacement. Combined mileage about 22.7 mpg. 26.8 hwy (non DI engine). Runs great, fun to drive. Excellent paint quality. I also own a 2004 SRX which has been okay, but had to replace xfer case at 51,000 miles.
This CTS now is at 38,000 miles with no issues. Great quality GM. I now own four GM vehicles.