Aut cum scuto aut in scuto
An early Porsche. Cost you a couple mill if you can find one.
That's NOT a Porsche...it's an Alfa-Romeo
The Alfa Romeo 8C 2900 B Speciale had a 2.9L supercharged straight 8 making 220 hp. The body was aluminum hand-formed over a tubular frame. It ran in the 1938 LeMans, stretching out a lead of 150km before retiring.
Pretty much an Alfa F1 with a coupe body - very similar to the 2900A that won both the '36 and '37 Mille Miglias. I can just imagine what that blown straight-8 sounded like full bore!