AUTOSPORT revealed in March that Peugeot had been developing the 908 HYbrid 4 alongside its 908 Le Mans challenger.
The Hybrid 4 had been given a shakedown at a private venue on September 16, but Estoril represented its first genuine track test.
Peugeot Sport's Technical Director Bruno Famin said the test had been a success, although he explained attention had been directed to system functions rather than outright performance.
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