Sorry Shamrock, but the puzzle was locked for Tobytwirl.
This is indeed a Mitsubishi Colt F20 from 1969, supposedly built to compete in that years's Japanese GP to be driven by Tetsu Ikuzawa, well-known as an F3 driver in British and European races. The problem is, the GP that year was run as a Gp7 sports car race! Possibly there were supporting races, and the car would have qualified for F2 races with its 1600cc production-based motor.
As Shamrock points out, it's captioned as a "Coly", which I suspect is a typo. I reckon it's an F2C.