The 2006 Cadillac CTS-V is a truly wonderful car that was cross shopped against the Volvo S60R and an Acura RL. If you want BMW M-Series performance at an affordable price buy this car.
The driver information system is easy to use and the XM traffic in particular is a huge benefit. However, the best benefit is merging onto highways in third gear. Nothing has ever shoved me quite so forcefully into my seat as this car.
Eliminate the skip shift (a little aftermarket kit is one solution) and improve the shift quality.