To start off I will say it is definitely not 'Baffled' starring Leonard Nimoy, though there are some similarities in the story.
I remember watching it twice on television in the early 70's. It is possibly a made-for-television movie, but for all I know it could have been an episode of some horror anthology show. The protagonist is a race car driver/drag racer. He has a terrible accident during a race in which he is blinded by a fireball from another car. I believe he goes blind at first. When he recovers his sight, he starts seeing these troubling and creepy hallucinations. One is of four or five men dressed as racing uniforms who are completely two-dimensional and revolving around on an axis. Then there are these two apparitions with horrible cackling electronically distorted voices. At the end of the movie, he is cured but then has an identical accident and the hallucinations return.
I've been trying to discover the title to this for years and years. I will be eternally grateful to anyone who can provide me with a title.