2008 Cadillac CTS 4dr Sedan w/Direct Injection (3.6L 6cyl 6A)
I absolutely love my 2008 CTS. I chose a 6 speed manual with the direct injection (304 hp) and for the power it gets amazing fuel economy. I have not had one single problem with this car since I drove it off the dealer lot. The cabin is comfortable, quiet and has lots of goodies to play with. Th exterior literally makes heads turn. The materials are high quality and the design is flawless.
When you turn your car on, does it return the favor. The answer is YES!
Not an improvement suggestion, but perhaps a hybrid version.