The Cadillac DeVille was positioned between the Calais - which had replaced the Series 62 - and the Sixty Special and Eldorado. It was redesigned in 1965 but retained the 129.5-inch wheelbase platform, and power continued to be from the 429 cubic-inch V8 delivering 340 horsepower, which could be replaced by the 472 CID V8 for 1968. The engine was moved six inches forward in the frame thanks to the perimeter frame construction, resulting in a lower transmission hump and increased interior room. For the first time on the DeVille, pillared sedans were part of the lineup, while the six-window hardtop sedans were no longer offered. Design elements included tailfins that were canted slightly downward, and distinct, sharp body lines replaced the previous rounded look. Vertical headlight pairs replaced the prior horizontal units, and the back featured a straight bumper and vertical lamp clusters. Safety seatbelts and lamps for the glove box, rear passenger compartments, and luggage area were now standard.