DTS replaces DeVille for 2006 as a restyled update of Cadillac's largest sedan. It retains the same basic dimensions, front-wheel-drive design, and 4.6-liter V8 with 4-speed automatic transmission. DTS offers Luxury I, Luxury II, and Luxury III models, each with 275 hp. A Performance model has 291 hp, firmer suspension with automatic-adjusting shock absorbers, and 18-inch wheels vs. 17s. Every DTS includes ABS, traction control, front side airbags, and curtain side airbags. Also standard: leather upholstery, remote engine start, load-leveling suspension, xenon headlights, and OnStar assistance. An available front bench seat on Luxury versions increases passenger capacity to six from five. A sunroof is optional. An antiskid system and front/rear obstacle detection are standard on Luxury II, III, and Performance models. So are heated/cooled front seats and heated rear seats. Optional on these models are a navigation system with voice recognition and adaptive cruise control.