Citaat: In 1967, Porsche engineers, under Dr. Ferdinand Piech, created what has to be one of the most unique variations of the 911 - the competition 911R of which only 24 examples, including four prototypes, where made.
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(...)Piech decided to see how many pounds he could sweat off the 911 in the latter part of 1966, even though the effort would have little short term effect on the factory's racing fortunes.
Because there was no initial intention to homologate the 911R, its meager record of achievement doesn't seem so bad as it might have been. (sales department rejected the idea of homologation of 500 units for the FIA).
Results aside, the true importance of the 911R is that it formed the basis for all of Porsche's future lightweight models, including the Carrera RS and RSR's as well as the later 934 and 935 Turbos.
The first four prototypes (chassis: 305876S-R/1, 306681S-R/2, 307671S-R/3 and 307670S-R/4) came to the experimental department as complete production 911S models in the latter months of 1966 and early 1967.
Stripped down to their bare shells, the cars were transformed into 911Rs by the engineers and emerged in their new configuration between March and April in 1967.
This process not only involved weight saving, but also a engine-transplant from one of Piechs other creations, the 906.
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While it also had been intended to replace the bumpers, doors and front fenders, as well as the hood and rear decklid, with feather-weight substituses, there was little agreement on the best material to use in the manufacturing of these pieces. | 
, ondanks dat ie niet meer met de sportomatic is uitgerust waar ie de enige race die ie won (over 96 uur) ter promotie van die semi-automaat.
