The incident, which also involved a second car, took place this afternoon on Main Street, Milngavie, East Dunbartonshire, just after 12.45pm.
After being freed from the car the motorist was taken to Glasgow's Western Infirmary.
John Hutcheson, fire service watch commander, said: "We arrived to find the driver of one of the cars still inside his vehicle.
"He was not physically trapped but paramedics asked us to remove the car door so he could be safely lifted clear."
Scottish Fire and Rescue crews from Milngavie community fire station and Clydebank reached the scene within four minutes.