Quote:
Originally Posted by serialk11r
Also a little more on the original topic, the McLaren P1 has a 0.34? Cd, and that's with fat tires + cooling ducts everywhere, and the wing has that bend in it that can't be good for drag when in the down position. It's got much better downforce and stability at speed than a lot of the other supercars, so maybe this isn't so much a design goal problem as it is a problem with poor design.
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The CD is different depending on whether it is in race or road settings... The ride height drops 50mm, the wing adjusts, and active aero in the front of the car adjusts as well. But I've never seen any data on how it imapcts CD... They say that the rear wing can reduce drag by 23 percent, but is that 23 percent bringing it lower than .34? Or is that 23 percent bringing drag back closer to .34 when in race mode?
I've also read, that they created active aerodynamic features to alleviate strain on suspension componets from the extreme downforce the car is capable of. Now THAT is crazy to me
I think it makes like 1300 lbs of down force (the most of any production vehicle), so having that in mind... I think a .34 CD is simply amazing. And its probably due to the compact and super light body with inlet and vents wind tunnel tested/designed for optimal aerodynamic performance, especially in regards to interaction with the rear wing. Good read right here if you're interested:
McLAREN P1 : McLaren Automotive Media Centre
~C