At approximately 0530 hours, we were dispatched as the third due Rescue for an MVA with entrapment on Rt 213 near Perkins Hill Rd.  Rescue Pumper 3 responded with 5 and was assigned to assist Rescue Pumper 4 and Rescue 6 with extrication.  The crew assisted with a door and roof removal and with packaging of the patient.  RP-3 operated for about 1 hour.  Deputy 3/J. Duhamell was OIC of the Rescue.