The Peugeot 908 RC has had its aerodynamics ‘fine-tuned’ to achieve a drag coefficient of 0.556.
Perhaps the company should look to the Citroen 2CV, which, according to Wikipedia, has a drag coefficient of 0.51.
I suspect that, despite having two particulate filters — one for each exhaust system — the 2CV is more environmentally friendly.
Robin Herrick, Wick
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