Hartge Roadster in ordine cronologico
Hartge BMW Z8 (E52) '2000–03
Hartge BMW Z4 Roadster (E85) '2002–06
Hartge Z50 (E85) '2003–05
Hartge BMW Z4 Roadster (E89) '2009–10
Hartge BMW Z4 Roadster (E89) '2010–12
WheelsAge.org '2005–pres.