That's one sharp-looking early Japanese micro car. With the RR layout and super cool Giugiaro design it's an easy Sub Zero.
I looked it up because I wanted to know if it was a motorcycle engine (not really), and it's actually a two-stroke, so 100hp/L is not quite so impressive.the most impressive thing is the power for the Capacity more then 100hp per litre, for a car from the 70s is amazing...