The first machine was the final project of Kees van der Westen's industrial design studies, in 1984. His family-owned workshop in Waalre, in the south of the Netherlands, now builds the Speedster, which first appeared in 2001 as a limited run of six and went into series in 2008 with his own saturated group.
The Spirit, shown as a prototype at the 2010 London SCAE show, is essentially a large commercial Speedster.