No, it's not the Rhine River, nor is that the Ludendorff Bridge over the Rhine in the background but... it works. The vehicle is in Virginia, the river etc is in Connecticut.
British-built and marketed as the Vixen 2500 for the US market, this is one of 385 produced from 1971 to 1972. Originally photographed leaving a Cars and Coffee, summer of 2013, and revisited for this edit in 2020.
With nine Mercedes-Benz ready to be had.
