For 1994, the DeVille was redesigned to share the K-body platform with the Seville. The body was redesigned, although the wheelbase remained 113.8"—rather than the 111" used on the Seville. Production moved to Hamtramck, Michigan.
The DeVille Concours was available with the new 270 hp (201 kW) LD8 Northstar V8, while lesser models retained the HT-4900 until 1996. That year, the base model took on the lower-output Northstar while the Concours moved up to the high-output L37 Northstar, with 300 hp (220 kW). The DeVille Concours replaced the 1993-only Cadillac Sixty Special.
The DeVille received a minor redesign for the 1997 model year, and added the d'Elegance trim line to replace the Cadillac Fleetwood. New headlights and a new grille were added, the rear wheel skirts were removed, the interior door handles were redesigned, and the black/chrome trim was replaced by a double chrome trim in the base Deville, chrome and gold trim in the d'Elegance, and chrome and body colored trim in the Concours. The name was shortened from Sedan deVille to DeVille. The interior gained a new dashboard design that hid the passenger airbag seams and new door panels with front side-airbags and the availability of OnStar system.
|Base||1994–1995||4.9 L HT-4900 V8||200 hp (149 kW) at 4100 rpm||275 ft·lbf (373 N·m) at 3000 rpm|
|1996–1999||4.6 L LD8 Northstar V8||275-300 hp (205 kW) at 5750 rpm||300 ft·lbf (373 N·m) at 4750 rpm|
|Concours||1994||4.6 L LD8 Northstar V8||270 hp (201 kW)||300 ft·lbf (407 N·m)|
|1995||275 hp (205 kW) at 5750 rpm||275 ft·lbf (373 N·m) at 4750 rpm|
|1996–1999||4.6 L L37 Northstar V8||300 hp (224 kW) at 6000 rpm||295 ft·lbf (400 N·m) at 4400 rpm|