Horsham Police are appealing for information or dashcam footage that may assist them with an investigation into a car fire on Friday night.

A red Holden Commodore sedan parked on the side of the Western Highway between Pimpinio and Dahlen caught fire about midnight Friday night and three CFA crews took around 20 minutes to control the blaze.

Police believe that a white utility or similar vehicle may have been parked directly opposite the red Commodore around the time of the fire.

Anyone with information is asked to contact First Constable McGlade at Horsham Police Station on 5382 9200 or Crime Stoppers via 1800 333 000 or at www.crimestoppersvic.com.au.