Following his first Eigenbau, the Piccolo, Karl Weber returned with his BMW powered Seepferdchen. He achieved a number of good placings through 1952 to finish second in the East German championship to Willy Lehmann. He continued with the car into '53 but could only manage fifth, the top three places being taken by production Grün cars.
Some results for Karl in the Seepferdchen:
If anyone has any more details or photos, please get in touch.