the most famous custom car ever built, is the Hirohita merc.
in the early 50s there was a change going on in the custom car field.
Cars were changing shapes but they were still quite high and bulky
looking, so customizers began to streamline the bodies to suit their
tastes. Bob Hirohata bought a 1951 Mercury and took it to the Barris
brothers to have it customized. The most important thing that he
wanted them to do was stop the top and make the side windows into
a hardtop. He wanted the same style side windows that Barris brothers
had used on Nick Matranga's 1940 Mercury Coupe.
Sam Barris and Frank Sognozi did the work of customizing the car
and it made its debut at a car show in California. It was so radical
that began to appear on all the magazines of the day.