The Birdcage was a wonder, and the epitome of pre-monocoque race car design, a gossamer web of 200 pencil-thin chro-moly steel tubes welded fillet brazed into a delicate space frame which weighed all of 90 pounds.

When Jason Castriota left Pininfarina for Bertone, it was like switching to Coke after a lifetime of Pepsi. Let’s examine a design element he’s started using that’s alien to Pininfarina but essential to Bertone.