This car has an interesting history.  The photo below shows the car in its first incarnation.  Website visitor and model maker Paul House built models of the car in BOTH of its body styles.
 
 

MacDonald exiting Turn 7A at Riverside at the USRRC event, April 25-26, 1964.  Amazing how green the usually bleak raceway looks during this Springtime event.  By the end of May all of this greenness is gone.