A Christmas trend gaining popularity on TikTok that involves motorists wrapping their cars in bright, bold lights, may have less than festive consequences, police have warned.

The trend sees drivers wrap their cars in Christmas lights, plugging them into the car's electrical circuit.

"How-to" videos are circulating online.

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"The reason I plugged it into the front seat and not all the way in the trunk is because if I see a cop or if I see someone who's a bit suspicious or I don't want to be shown – I literally click this button and it turns it off," one driver said.

Queensland Police have warned drivers could be fined more than $300 for violating lighting regulations.

Only police vehicles are permitted to display blue and red lights, while vehicles with red and green lights can be mistaken for ambulances.

This article was produced with the assistance of 9ExPress.