The 320-hp, 4.6-liter V8 has now been discontinued, as has the all-wheel drive option. And with the V8 goes adaptive steering, adaptive damping, Magnetic Ride Control, and 4-wheel active steering--all ...

The STS started out as an up-level trim of the midsized Seville, with a strong 4.6-liter V8, traction control, and an active suspension system. The STS accelerated faster than many of the performance ...

The most powerful six-cylinder production engine ever built by General Motors arrives in July in the 2008 Cadillac STS. The aluminum 3.6-liter V6 gets direct fuel injection, which yields 302 hp, 272 ...

Cadillac’s STS isn’t quite as agile or fast as the CTS, but it’s still a very enjoyable luxury sedan. For years, luxury car makers have offered less expensive V-6 powered versions of their more costly ...