Kanter-Auto from 1949?
Built by Kanter and Wasterval.
"Basis for the car was the floater of a Dornier seaplane, while parts from other planes like the Mustang, Typhoon, Flying Fortress, Liberator and Stuka were also used. Even parts from a V1 were found to be useful. Car-parts that were used were amongst others a 1200 cc 2-cylinder Reading Standard engine and the wheels from a Ford."