>>1379574Good call. I was too lazy to check it out but I got pretty close. It's one of two Mercedes 540k Autobahn Kuriers produced between '37 -'39. A third may exist although it appears to be a 500 coach with the 540 motor. Possibly a stepping stone between the 500k and 540k but I don't know for sure. I mistook the one in the photo for its predecessor the 500k which is a faux pas.
The car pictured was originally bought by Ignacio Barraquer (chassis #408336) and went into restoration in '04 after being purchased by an American. Upon completion it traded hands again and was shown at the '06 Pebble Beach Concours d'Elegance. While it did win its class it didn't get the Best of Show. Evidently there was some controversy when it came in second to a Daimler Double Six Roadster.
I found a few more HRs of the car. I hope you enjoy them.
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