Reminds me of the last conversation I had about the smallest car.
A local guy who brought his 1960 Vespa 400 Coupe to a show here and told everyone that it was the smallest car to be imported into the US ever, and that it was of no relation to Vespa scooters, because it was made in France.
I started to mention that the Isetta was 1/2 of an inch shorter (officially,) but he was being a total jerk to everyone. I also decided that not knowing that the car was indeed a product of the same Vespa company that produced scooters (just in partnership with a French-localized subsidiary which was required to produce the cars there) made him look dumb. It's okay not to know strange details about a car one owns, but to come off like an authority and be dead-wrong is just funny.
Oh yeah, he had replaced the car's air cooled two-stroke engine with a Geo 3-cylinder plant! How he didn't make the connection between the motorscooter company and the car with two stroke/air-cooled engine both with the same name!?!?!
Cute little car, but man was that guy dumb and brash.