The great success that Porsche enjoyed with its first 550 Spyders
spurred its small but effective racing cadre to a more ambitious
design with its 1956 Type 550A which won the 1956 Targa Florio --
Porsche's greatest victory yet. In 1957 Porsche created the
immortal RSK, a race and hillclimb winner. The RS60 arrived in 1960
and evolved into the RS61 and then the Type 718, using the Grand
Prix eight-cylinder engine.