The car was severely damaged near Sampford Peverell on Saturday night.
The southbound carriageway was closed yesterday evening, while fire fighters tackled the blaze.
The cause of the fire is thought to be accidental. The road has since reopened.
Car fire on M5 in Devon
More from Local News
-
Residents angry at plans to sell land at Central Park
Council say house there has been empty for years
-
Girl who died at Cornish beauty spot named
She was from Newton Abbot
-
South west police hunt for London man
He's wanted following reports of theft
-
Devoncast: Inquiry into grooming gangs and the Women's Rugby World Cup
Local Tories say they'll work with police and crime commissioner
-
Man arrested following lectern theft
It went missing in May
