here's a close shot of the emblem. It does resemble a Mercury to some degree, but doesn't look right to me.
Funny you should say that, my dad owned Hitlers Mercadies(spl) in 1955-56. Dad was stationed in Germany when I was born and as a sideline to earn more money bought and sold cars. He traded a Buick and recieved a $100 for the car. He drove it for a year, but all the locals would walk by and spit on it, calling it Hitlers car. He sold it for $150. About 1973-4 We seen it sell at Kruse-Leake auction in Tulsa for @ 125,000 if I remember right.
'46 Merc, like the man said. http://www.tocmp.com/brochures/Mercury/1946/pages/1946%20mercury%20ad-01_jpg.htm