Cadillac has announced a special trio of new vehicles based on the 2013 XTS. Included are a limo, a livery sedan, and a "funeral coach." What's that last one? Yup, a hearse. Rather than attack the front-running Lincoln Town Car in the livery space, Cadillac will offer a more limited run of luxury appointed XTS sedans (read: quality trumps quantity). The stretch versions are not built in house, however Cadillac works exclusively with authorized manufacturers to ensure consistency.