- 2006 Cadillac STS VIN 1G6DW677660114893 - Used Cadillac for sale from Jim Keras Subaru Nissan by EveryCarListed.com This Tan 2006 Cadillac STS offers comfort and luxury like no other. Inside, you'll find a Audio System Premium Brand Speakers: Bose and more. You can also ride with confidence with the Braking Assist and more. We would love to talk to you more about this STS. Please contact us for more information.