Prices shown for the used 2006 Cadillac STS-V Sedan 4D V-Series with NaN miles are what people paid to buy this vehicle or what people received when trading in this vehicle at a dealer. Edit options.

The two V-series cars that followed — 2006 XLR-V roadster and the STS-V sedan — flew under the radar, yet beneath their edgy hoods lurked special V-8s designed for effortless power and torque.