Launched as an early 2003 model, the CTS was built on a new Sigma rear-wheel-drive platform and featured square-edge styling and a 220-horsepower, 3.2-liter V-6. Suspension revisions and interior changes for 2004 were intended to soften the ride and reduce noise. Cadillac also added a 255-hp, 3.6-liter V-6 to the options list in 2004, and in 2005 the base V-6 was replaced by a smaller, 210-hp engine. A manual or automatic transmission is available with either engine. Cadillac has described the CTS body as lean, bold and chiseled, incorporating ''sharp edges and crisp intersecting lines'' and a short front overhang. Measuring 190.1 inches long overall, the CTS rides a 113.4-inch wheelbase. Integrated, traditionally styled vertical headlights and taillights are installed. The large, shield-shaped, louvered eggcrate grille is reminiscent of Cadillacs dating back to the 1930s. Cadillac's wreath-and-crest symbol is incorporated into the grille. Six airbags are installed: dual-stage front airbags, seat-mounted side-impact airbags and roof-mounted side curtain airbags. Antilock brakes and all-speed traction control are standard.