Schützenpanzer Lang HS.30 was designed by which Spanish auto company?
Schützenpanzer Lang HS.30:  It was a Swiss Hispano-Suiza design, with a Rolls-Royce engine. Hispano-Suiza: Hispano-Suiza (English: Spanish-Swiss) was a Spanish automotive/engineering company and, after World War II, a French aviation engine and components manufacturer.
Hispano-Suiza