You and me both. I was headed toward a Sterling or Amiga kit car until the world changed around me into something I wasn't expecting (still does that); I got as far as the PolyGlas F60-15s on 8" wide rims (front and back, on gravel you could turn or brake, but you couldn't turn *and* brake).
The nice thing about today is there is software that will produce a 3D model from a few 2D pictures. One could recreate and 3D print the Volkhart-Sagitta to within a few tens of microns accuracy.
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Oh, and this:
Karmann Ghia Station Wagon in France - Fake Volkswagen