Quote:
Originally Posted by mattcat
It's not just Pugeot that I am referring to. The Charouz Lola Aston and the Dome S102 outpaced the open cars right out of the gate. I am no aerodynamicist, but I would be highly inclined to believe that there is a big advantage in downforce created by the windscreen and top of a closed top car. Likewise, I would be inclined to believe that the design is inherently better in a straight line. Anyone with an advanced knowledge of aerodynamics feel free to correct me if I am wrong.
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The cockpit is actually a source of lift. The benefits of a closed top car are somewhat esoteric. Best guess is that closed top cars have less drag than an open top car. As for downforce, might be a bit of a wash as the cockpit potentially blocks flow to the rear wing. I'm told closed top LMPs have a slightly better L/D in low downforce configurations. I would guess in high downforce configs they are about equal.