The Cadillac CT5 is a rear-drive sport sedan drawn in straight, deliberate lines, with a fastback roof and Cadillac's vertical LED lights standing upright at each corner. Those vertical lights are its signature, and PRISM is built around them.

PRISM is named for how light behaves on it. The front is cut into flat, angled facets instead of soft curves, so every surface catches light differently and the vertical lines of the headlights run straight down into the bumper. Those edges carry along the sides to the tail, finished with either a GT wing or a ducktail. The CT5 becomes sharper, lower and far more aggressive, a Cadillac that turns heads instead of blending into traffic.