Free Car Washes for Life! And Loaner Car for Scheduled Maintenance!. With so much interior area, passengers get free rein. This 2010 DTS is for Cadillac fanatics looking all around for that perfect car. This car is nicely equipped with features such as Free Car Washes for Life! And Loaner Car for Scheduled Maintenance!. Not only will it save you money at the pump with its extremely good gas mileage, but will still excite your senses with plenty of zip. Consumer Guide Recommended Premium Large Car. Price excludes tax, tags, certification and processing fee. Please call our Internet Sales Department if you have any questions or to schedule a test drive.