UDM - Ultimate Driving Machine. UDMowners is an automobile enthusiast forum founded by Chester Cheng in 2004.

A new forum was re-launched in 2006 when a group of enthusiast with the passion for the "propeller brand" got together. We would like to take this opportunity to thank the following for their contribution and effort in re-launching the new forum - Karate70, Popeadrian, LumkyE46, RedEarth, BMWCar, Valkyrie, Chubby, Retrosurfer, NKTOB and Tkew. Site sponsors for 2006/07, Mspeed and Action Motor, were also instrumental in making this happen.

UDMowners is dedicated to owners and enthusiasts of BMW automobiles and all car make that one perceived as their UDM. Members get to know each other online, but many also meet in person at different times during the year at special events. We invite you to browse around and see the vast amount of information that is available to you here. The site is free to all non-commercial members.