9ff GT9-CS
At the 2011 Essen Motor Show, 9ff brought out the third version of the car, the GT9-CS, built as a one-off. This car used the Stage 1 engine, thus producing 738 bhp (550 kW; 748 PS), and was designed specifically as a track-day car. A further 86 kg (190 lb) of weight was removed from the car, and several changes were made - a new rear spoiler, front splitter, and revised air intakes.
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