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 ...

There's more riding on the 2005 Cadillac STS than just a new name-although it has one of those. As the Cadillac press kit lays it out after recounting highlights of the on-again, off-again forty-eight ...

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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 ...

For 2008, the STS attempts to dazzle its opponents with the chrome wattage of its bigger, fancier grille, chrome door handles, and--today's must-have style accessory--chrome front fender vents. Inside ...