My younger cousin visited for dinner this weekend- take a look at the Opels that he found for sale:
http://www.countryclassiccars.com/cars.htm
The cars are listed by year, so check 1951, and sort through the late 50's and 60's.
http://www.countryclassiccars.com/cars.htm
The cars are listed by year, so check 1951, and sort through the late 50's and 60's.