I knew that seat looked familiar.
This is a
FOX "Mini-Go-Boy" I owned about 25 years ago...
It had a set of 4" magnesium LeMans wheels, cast aluminum pedals, "Satellite seat", engine turned floor pan with a gold Fox Go-Boy crest on it. The steering wheel was so small you could grab it around the circumference with one hand.
Those are 12" floor tiles....the whole kart was only 3 ft long, you could tuck it under your arm and carry it like a toy...
Somebody added the old CAL Custom air scoop, it was on it when I got it. They drilled holes in the top of the B&S air cleaner so it was actually functional.
Sold it a long time ago and always wondered what became of it.......