Driving Me Nuts

I am trying to find a TV movie that was likely made in the '70’s. All I remember is a nurse (or someone dressed as a nurse) stealing an van/ambulance and kidnapping a child she believed had special powers (or was something with a religious sect). A car chase ensues and she crashes the van and it is tipped over on its side. She tries desperately to lift the child out of the van before it explodes.

Thanks in advance for any help on this one!