In road car clothes. Look under that rear window and down those 8 open fuel injection throats! I've heard one and I can’t explain the sound. It was the 2 liter Tipo 33 race car, minimally civilized to be legal by the more liberal standards of Italy in the ‘60s. I’ve seen 2, one in the US and the other at the Alfa museum. Both different and very hand-made. The stuff of dreams!
Kent