In January of 2000 Sean from Trunkmonkey Racing created the Trunkmonkey concept as a mascot for his race team and the North American Subaru Impreza Owners Club:

http://www.trunkmonkeyracing.com/

In January of 2003 R/West started creating a series of advertisements for Suburban Auto Group that appear to be based on Sean's Trunkmonkey concept. Check out the official Trunkmonkey Web site for the Trunkmonkey FAQ:

http://www.trunkmonkey.com/ (less info)