the XLR-V and STS-V used a custom-tailored version of Cadillac’s own Northstar V-8. This supercharged, 4.4-liter Northstar was exclusive to these two rear-drive V machines and assembled by hand ...

If the Cadillac STS-V wasn't powerful enough for your tastes at only 440 HP, you're in luck. Under the new SAE J2723 standard, the supercharged 4.4 L Northstar will be certified to produce 469 HP ...

Cadillac is smitten with the V-Series ... larger STS sedan, already a fine handler, and with the serious incoming power upgrades, a potential real competitor for the new V10 BMW M5. A supercharged ...