Motor-paced racing involves cyclists pedaling in the slipstream of a fast car (or train) in search of absurd speeds. In 1979, French cyclist Jean-Claude Rude wanted to hit over 150 mph on his Bianchi to set a world-speed record. He turned to Porsche Martini Racing for help in his quest.
Rude's record attempt is the subject of a section in Porsche's most recent 9:11 video magazine, and it's fascinating. Porsche created a special version of its then top-level 935 race car with a gigantic spoiler that could create a pressure vacuum for Rude to ride within, towing him up to speed. Le Mans-winner Henri Pescarolo would drive the 935 for the record attempt, which was held at Volkswagen's Ehra Lessien test track.
As you can see in the picture above, Rude's bike was fitted with a giant sprocket to allow it to obtain huge speeds, and a roller bar was installed on the back of the 935 in case the bike's front tire came into with the car. The attempt would also require some very precise driving from Pescarolo—accelerate too quickly, and Rude would be subject to huge wind pressure, putting his life in danger.
The attempt didn't go very well. Pescarolo explains in the video that Rude's rear tire blew out at over 100 mph, though the cyclist was able to slow down without injury. It's a fascinating, frankly bizarre, footnote in both Porsche and cycling history.
The section on Rude's record attempt begins at 2:25. if you can't see the video above.