Honestly there could be several threads on crazy aircraft vaporware designed by the 3rd Reich.

Triebflugel?

I can't believe the clown shoe hasn't gotten more love here.

The original VW Rabbit. Boxy perfection. My 1975 Rabbit was a trooper when I lived in the city. Never let me down. Yes it was a slushbox, but it was cute as a button, easy to park and simple to work on.

I'm going with the non-M Z3 Coupe, as trim and complete as any BMW body should be. Plus it checks off all of the Jalop boxes for the ideal vehicle.

I hear it runs on the tears of unicorns. If so, then the whole salt water thing stands up.

The best educations can be made from banned books.

It's a bit generous to call a Dunkin' Donuts a donut shop, isn't it?

Automatic Transmissions... that shit is sorcery, and I'm an engineer.

The Horten Ho 229. A whole new take on plane design:

While not originally a Military plane (though, 62% of the planes built were Military aircraft), the Douglas DC-3 was one of the most influential planes in history. So much, that you can still find some in use today...

The Kettering Bug was one of the first shots at an unmanned plane. 40hp, gyroscope controlled. In WWI!

The Martin B-10

Duesenberg! Lots of rich people these days...

Studebaker

Tucker would have merged with Tesla by now.

Since you asked:

CRX