WWII in the Beamverse - Ibishu Hopper Classic makes no sense?

I'm trying to figure some things out WRT the lore of BeamNG and how it might have differed from the real world, but I'm hitting a problem with the Hopper Classic because:

-We know the US and Japan still fought in the Pacific, and because of the Japanese bunker and abandoned Zero on JRI, we know Japan's naval campaign was successful enough to occupy an island considered to be part of Hawaii

-We know the US didn't lose and get taken over, because judging by the rest of the game's cars, postwar America followed the same path as IRL with a muscle-car era, a malaise era, etc.

-But yet somehow, despite both of these things, Ibishu gets away with selling, in the US market, a version of the Hopper designed to commemorate "a classic military vehicle" - likely the Hopper's WWII-era ancestor. (And likely violating safety regs to do it, since it's missing the roll cage every other version has.)

Now, in practical terms, this is because the Hopper is an analogue and mashup of at least 3 different American and Japanese cars, one of which is the Jeep CJ/Wrangler, but still, it makes little sense from a lore perspective. What actually happened in the 40's and after in Beamworld?