Stealing the top comment from u/Maynard078 in r/classiccars here as it's essential:

"More accurately, this is one of Wacky Arnolt's incredible Arnolt Aston Martins, as bodied by Bertone.

Stanley Arnolt was a Chicago-based entrepreneur who lived in Warsaw, Indiana, and had a sixth sense when it came to spotting profitable business opportunities.

"Wacky" earned his nickname in 1938 when he purchased the rights to the Sea-Mite marine engine and putt-putted sixty miles across Lake Michigan, from St. Joseph, Michigan to Chicago through dense fog in a 13-foot rowboat powered by the tiny engine he helped develop in order to secure a Navy contract. He became a millionaire when the US entered World War II.

After World War II, he obtained the Chicago-area distribution rights for Aston Martin, Bentley, Rolls-Royce, Bristol, MG, Riley and Morris automobiles.

He single-handedly saved Bertone from bankruptcy when he placed an order on the spot for 100 Arnolt-MGs after seeing a single example on display at the 1951 Turin Auto Show.

Aston Martin wasn't delighted that Wacky badged the car as an "Arnolt Aston Martin" but there wasn't much they could do, as he provided the body work and purchased the chassis and running gear from Aston Martin directly through his dealership.

Wacky was a brilliant, quirky, and indomitable spirit.

Automobile enthusiasts owe him a great debt."