The car was pushed 500m down the track by the 0546 First Great Western service between Exeter and Paddington. The car driver was killed but no one on board the train was injured.
Emergency crews are hoping to move the train back to the crossing within the hour to allow the 45 passengers to disembark.
More top news
A man who opened a parcel addressed to his new home was shocked to discover a large tarantula inside.
A transgender teen from Gloucester has told ITV News how he plans to freeze his eggs before his sex change in order to have children.
The manager of a cheese factory in Somerset - due to stop production next month - says he's still hoping a last minute buyer will step in.