Unfortunately the longest and shortest vehicles in https://en.wikipedia.org/wiki/List_of_automotive_superlative... aren't there, but this is the closest I could find:
https://www.carsized.com/en/cars/compare/bmw-isetta-1955-1-d...
https://www.carsized.com/en/cars/compare/bmw-isetta-1955-1-d...