The SP1 ("Special Project Number 1") is based on the F430 and was the inaugural one-off created through Ferrari's coachbuilding program, officially known as the Special Projects Programme. The custom bodywork was designed by former Pininfarina stylist Leonardo Fioravanti. It was commissioned by Japanese entrepreneur and collector Junichiro Hiramatsu, former president of the Ferrari Club of Japan, who had admired Fioravanti's 1998 F100 concept car.
Summarized from the sources cited below; every figure in the text was automatically verified against the sources.

2004
2005
2006
2007
2007
2008
2009