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Front license plate affect on aerodynamics

Discussion in 'Model 3' started by Tezlah, Apr 3, 2016.

  1. Tezlah

    Tezlah Member

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    For those of us that live in states/countries that require a front license plate, how much will a front license plate hurt the aerodynamics of the Model 3? It's frustrating to think that Tesla spent all this effort making the car aero, only to have a flat front license plate create excess drag.
     
  2. WarpedOne

    WarpedOne Supreme Premier

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    Front license plate will eat about 0.1 mile of range.
     
  3. Trips

    Trips Member

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    What if they did a clear part of the bumper that you could put the plate behind?
     
    • Like x 1
  4. Tezlah

    Tezlah Member

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    Any data on this?
     
  5. WarpedOne

    WarpedOne Supreme Premier

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    Stick your hand out of the window and observe the drop in mpg.
     
  6. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

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    Compared to the wing mirrors, the license plate is virtually nothing.
     
  7. Rashomon

    Rashomon Member

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    The front license plate will likely add an immeasurably small amount to aerodynamic drag. It won't increase frontal area (A) and can only increase coefficient of drag (Cd). But it is going in an area that Is already pretty flat and blunt, and is generally high pressure already. So the effect on Cd will likely be absolutely minimal.
    What would have an enormous effect is a roof rack or a police light bar. Both would increase A substantially, and also raise Cd by tripping the flow over the rear roof line. In general, anything added to converging parts of the body shape, sometimes even thick tape, will have a much greater effect than items added to the diverging parts of the vehicle in front of the section of maximum area. It's a lot harder to keep flow attached as you try to bring it back around the car.
     
    • Informative x 1
  8. souslik

    souslik Member

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    Will not order with police light bar then. If it comes standard that'll be a deal breaker for me.
     
  9. el crucero

    el crucero Member

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    I guess I won't be putting the taxi light bar up on the roof either! Dang, I was hoping to make payments on my T3 with taxi revenue. :(
     
    • Funny x 1
  10. 1208

    1208 Active Member

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    Uber drivers don't need Taxi bar on top ;)
     

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