Fiberfab Avenger GT-12X, 1968. Based on a VW Type 1 backbone chassis and styled to resemble a Ford GT40, the Avenger GT 12 remained in production until 1978. The donor car's original 4-speed transaxle and rear-mounted flat-4 Volkswagen air-cooled engine could be used, but alternatives included Porsche or Corvair flat-6 motors. There was also a GT-15 with a custom chassis built to accept suspension and drive-train components from a Chevrolet Corvair
LIRR ran four of these little hirail VW Transporters back in the 1960's -- basically for less cost and hassle than a Fairmount Speeder and just as good on gas...
Came equipped with a homemade pintle jack turntable for fast U-turns! Seemingly the track maintenance crews, who called themselves the Cockney slang "Gandy Dancers" lovingly called this versatile little Volkswagen Transporter a "Gandyvvagen"
The Volkswagen Karmann Ghia combined the chassis and mechanicals of the Type 1 Beetle, with styling by Italy's Carrozzeria Ghia and hand-built bodywork by German coachbuilding house Karmann. More than 445,000 Karmann Ghias were produced in Germany over the car's production life, not including the Type 34 variant. Volkswagen Brasil produced a further 41,600 Type 34s for the South American market between 1962 and 1975.
Volkhart V2 Sagitta, 1947. Developed by Kurt Volkhart, a German engineer, based on a Volkswagen Type 1 (Beetle) but with a highly aerodynamic body made from aluminium. Despite having only 24hp from its VW 1.1 litre flat-4 engine it was capable of 140 km/h (87mph). When tested by VW in 2013 its drag coefficient turned out to be just 0.217