Bugatti Fan
in roughly 600th scale
Scalemates shows 1:601
https://www.scalemates.com/kits/revell-05146-united-states--1021019
That's from the circa 1950s "flat bottom" line of kits where the underwater hull is truncated at about half the draft and made flat.
There are only about a dozen parts in the kit and the end result can be seen to be utterly hollow and rather simplified.