Rudolph

Rudolph Perfect Roadster was a small German specialist constructor of replica and low-volume sports cars based in Mechernich, North Rhine-Westphalia. Founded in 1992 by Ralf Rudolph, the company produced kits and turnkey cars into the late 2000s, with activity documented through the mid-2010s, before it was wound up in January 2018. Its first model, the Classic Roadster, replicated the Volkswagen Karmann Ghia Type 14 as a convertible, using a glass-fiber body on a reinforced VW Beetle chassis and accommodating a range of flat-four engines. Rudolph later developed the Spyder in C and S variants—Porsche 550/RS-inspired but not exact copies—built on a galvanized tubular frame and typically powered by Volkswagen or Subaru boxer engines; a one-off Brusa Spyder electric version appeared in 2008. A late project, the Diardi, followed the Lotus Seven formula and was offered mainly as a kit.

The firm remained independently owned and operated under the Rudolph Perfect Roadster GmbH name. Production was limited, with sources noting a small run of Spyders. The company ceased trading and was formally dissolved on 5 January 2018.