A man has clung to the bull bar of a moving vehicle in an apparent Christmas Day road rage incident in Sydney.

The driver of the vehicle is being questioned over the incident in Sydney's west on Wednesday which was filmed.

Watch the video above

It's believed the 37-year-old clinging to the front of a Landcruiser ute in Homebush had just been involved in a collision with the vehicle.

Police say he confronted the driver before somehow ending up in the precarious position, clinging to the bull bar.

Your cookie settings are preventing this third party content from displaying. If you’d like to view this content, please adjust your Cookie Settings . To find out more about how we use cookies, please see our Cookie Guide.

The bizarre incident lasted several minutes and only ended when the driver stopped to let the man off more than three kilometres away in in Greenacre.

The video has been circulated on social media.

More on 7NEWS.com.au