The incident happened around 3pm on Tuesday, April 21, on Dumbreck Road, just off the M8 slip road, and involved a white Ford Fiesta and a black Kia Niro.
There were no reported injuries.
The driver of the Fiesta made off from the scene on foot and enquiries are ongoing to trace them.
Officers are also keen to speak to the driver of a silver Toyota Hi Ace van that was seen in the area at the time, as they may be able to assist with the investigation.
Constable Lewis Owen said: “I am asking for anyone who saw what happened to get in touch.
“Enquiries so far suggest the Fiesta was on London Road before the crash, around 2.40pm, then entered the northbound carriageway of the M74, onto the M8 westbound and then left the motorway at junction 23 where the crash happened.
“If you were driving in these areas around the time of this incident then please check any dash-cam footage you have to see if there is anything that could help with our enquiries.”
Anyone with information is asked to contact Police Scotland on 101, quoting incident number 1883 of Tuesday, April 21, 2026.
