2005 Chrysler 300 Signature Series

Chrysler's Signature Series badge was applied to several different models, including the 300, PT Cruiser, Town and Country, and the Pacifica.  This label signified the addition of an all-inclusive luxury options package.  In 2005, a Signature Series Chrysler included special 17 inch Aluminum Wheels, a power sunroof, special badging, a Boston Acoustics sound system, and two-tone leather seats.  
This package was applied the 300's Touring Trim, and aside from these style and feature additions, the car was the same.  Other add-ons included Sirius Satellite radio with a one year subscription, and an REC navigation radio.
The Signature Series featured a five-speed automatic transmission with the AutoStick manual shifter.  It was teamed with a 3.5 V-6, which made 250 horsepower and generated 250 pound-feet of torque.  The Touring model's suspension was softer than the C series, slightly compromising handling in favor of overall ride quality.  This 300's fuel economy was rated at 19/27 mpg.