Cadillac's DTS replaces DeVille as luxury symbol
For all intents and purposes, and conceptually, the newest iteration
of Cadillac's benchmark, luxury sedan will still be a De-Ville, but it
will be called the DTS as part of the marque's single-model market
strategy (one exterior, one interior, but with several option
packages).
at http://www.washtimes.com/autoweekend/20070308-124313-9600r.htm