For 1994, the "DeVille" was redesigned to share the K-body platform with the Seville. The body remained extremely similar, however, and the wheelbase grew to 113.8 in rather than the 111 in used on the Seville. The Sedan DeVille Concours was available with the new 270 hp (201 kW) Northstar V8, while lesser models retained the HT-4900 until 1996.
   De Villes are sometimes converted for limousine use and often features leading-edge automotive technology. For example, it was one of the first cars to feature airbags, Night-vision technology, XM Satellite Radio, OnStar roadside assistance, etc.
   The Deville's Raytheon night vision system was particularly notable. It was the first (and remains the only) thermal imaging night vision system offered as original equipment by an auto manufacturer. It was introduced in the 2000 model and sold well with over 7,000 buyers. Sales fell quickly, however, and by only 600 systems were sold in model year 2004. It was dropped in September of that year with just 145 units installed in 2005 model year vehicles.