https://www.youtube.com/watch?v=0McJBBUiKMk With the air quite thin at the top of Pikes Peak (14,114' above sea level), forced induction is required to keep a competitive pace. Almost invariably, those at the sharp-end of the pack use turbos or superchargers, and this monster—titled "The Porsche 911 Turbo S GT3R America Cup"—uses a …
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