The fire service received a call to the incident, reporting a car on fire in the hard shoulder, at 17.49pm on Thursday.
Pictures show the car completely engulfed in flames just after Bentley Lane Bridge, in between Junction 10 and 11, heading southbound.
A spokesman for West Midlands Fire Service, said: "We received call at 17.49pm to a Mercedes saloon vehicle alight on the M6.
"Crews from Cannock and Penkridge fire stations attended the scene.
"Two breathing apparatus and two hose reels were used and we left the scene at 6.50pm.