|1964 - Lotus Southwest (TX, U.S.A.)
1966-67 Robert J. Shaw, Rockford, IL, U.S.A.
1968-71 Richard T. Dagiel, Medinah, IL, U.S.A.
1971- ca. 1973 Dieter Lewis, Nashville, TN, U.S.A.
Chuck Gains, Manchester, MO, U.S.A.
Robert Seiffert, Boulder, CO, U.S.A.
John Douglas, Salt Lake City, UT, U.S.A.
John Yasenko, Tooele, UT, U.S.A.
George Raterink, Mead, CO, U.S.A.
Nick Sorprano, White Plains, NY, U.S.A.
imported into the UK by Richard Drewett
1980s - Paul Matty (UK) - restored car and raced it competitively in UK hillclimbs.
2003- to Present - Andrew Bradshaw, UK