The Cadillac STS has a distinctive, crisp profile with an almost box-like silhouette that somehow still looks aerodynamic. Perhaps it's the gently curved A-pillars and C-pillars that tend a bit more toward art than science. Sharply contoured lower rocker panels tracking rearward from the front fascia's bottom edge pull the body down, adding a stylistic ground-effects look. It's all very consistent with Cadillac's art and science design motif.Up front the STS has a boldly traditional eggcrate grille with Cadillac's trademark vertically stacked headlamps.
Chromed air extractor vents mark the clean flanks, and more subtle chrome accents adorn the door handles and rocker flares.
The rear has vertical taillights bracketing a tall, squared-off trunk lid. Recessed into the trunk's rear surface is a trapezoidal inset, big enough for European-spec license plates, housing large backup lights at the left and right extremes. Dual polished aluminum exhaust tips exit below the rear bumper.
The Platinum Edition features 18-inch chrome-finish wheels, an even brighter chrome-finish grille, bright chrome inserts on the exterior door handles, and Tuscany full-leather seats.