STS Cadillac 2006 Version
Cadillac stepped in to rear wheel drive terrain with its STS Sedan, which substituted the front wheel drive Seville for 2005. Cadillac has released the Seville title for 2006, but the new STS absolutely share some DNA with its forebears.
Under the Hood
STS Cadillac 2006 is powered by a 3.6-liter V-6 engine to produce 254 horsepower and 252 pounds-feet of torque. Cadillac’s 4.6-liter Northstar V-8 generates 320 horsepower and 315 pounds-feet of torque. A 5-speed automatic channels power to the rear wheels and 8-cylinder models are available with all-wheel drive. 2006 STS is offered with both standard V6 engine and optional V8 engine. It is designed with 5 speed auto transmission system.
Performance
This car can provide a fuel economy of 18 mpg in the city roads and 27 mpg on the highways.

Safety Features
STS Cadillac- 2006 model was offered with minor changes to its previous year car. Some of the newly designed features include standard Bose Audio system, all-wheel drive system, all-disc antilock brakes including brake assist navigation system and optional 18 inch wheels.
Pricing
The price of 2006 Cadillac STS ranges from $41,020 – $47,520.