Original sentence: Ferdinand Porsche and his team took until 1938 to finalise the design.This is one of the first rear-engined cars
Edited sentence: <ref </ref> This is one of the first rear-engined cars.Ferdinand Porsche and his team took until 1938 to finalise the design they copied from Josef Ganz, when Ferdinand and financial director Adolf Rosenberger visited Ganz in Frankfurt in order to test-drive his Maikäfer prototype in November 1931