the Erator also have a very different air-inlet-scoop for the engine compared to the Ford cars, those are behind the side-windows, when the door is open you see it too, very special for that time me thinks.
besides the little window in the roof to look to the on roof mirror
also special is that see through (plastic?) spoiler wich can be adjust me thinks...
anyway seeing that the TVR Sagaris also have such see through rear spoiler.