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M3P Rear Carbon Spoiler

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This part is irrelevant to promoting their product, and concerns the factory spoiler.

"
Overview: The optional factory Tesla rear spoiler provides sleek looks with optimized airflow characteristics to enhance efficiency as well as high speed stability.

Result: As expected, this product is not just for looks, it indeed performs improvements in high-speed stability and drag reduction. The vehicle’s total drag was reduced by 2.3% and the rear downforce was increased over baseline by 34.7%. This reduced the total drag coefficient (Cd) by 0.005.
"
Cd of production cars being from 0.20 to 0.40, a claimed reduction of 0.005 is no better than measurement noise.

Rear downforce was increased over baseline by 34.7%.

At what speed? From how much baseline?
Funny how this time they neglect to to provide absolute values.

If your life savings total $1, and you increased it by 34.7% to $1.35, it's still virtually nothing.

So how much downforce is there at 140mph that you claimed?

Are you 12 years old or something?
Are you uneducated or something?
 
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Cd of production cars being from 0.20 to 0.40, a claimed reduction of 0.005 is no better than measurement noise.

Rear downforce was increased over baseline by 34.7%.

At what speed? From how much baseline?
Funny how this time they neglect to to provide absolute values.

If your life savings total $1, and you increased it by 34.7% to $1.35, it's still virtually nothing.

So how much downforce is there at 140mph that you claimed?


Are you uneducated or something?


Obviously you don't understand aerodynamics; for the most part they are linear. You can run and google that too. Have a good day!