A video from Design & Plastick and Josef Zirkelbachs production in
Sweden. The segment is from a mid-80's Swedish TV series called
"Trafikmagasinet" (The TrafficMagazine). It was made when DP
Zirkelbach was starting out. The company used this location for at
least 5 years before moving to a nicer facilities together with
Porsche Sweden.
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Article (in English) from the Sept. 1986 issue of "Superauto Illustrated Magazine." It's called dp Motorsport and Its Fantastic Plastic Porsches, Ekkehard Zimmerman and his Design + Plastic company have taken Porsches to the limit and was written by
Mitch Frumkin, Sam Griffith, Doug Mitchel, Klaus Parr, Porsche West Germany. Lots of photos and includes a table of major specifications. (PDF format)
Article (in German) about a DP 935 conversion with biturbo CIS engine that was built for a US customer, named John Rossatti. The
article is from the German magazine "Rallye Racing" (issue 24-1987). It has lots of photos.
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Article (in Swedish) with photos of Josef Zirkelbach and Ekkerhard Zimmerman (plus lots of car photos).
