TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Flaps in front of the front tires...

Discussion in 'Model S' started by Caligula, Dec 10, 2015.

  1. Caligula

    Caligula Member

    Joined:
    Oct 14, 2015
    Messages:
    600
    Location:
    San Diego
    What are they and what are they for? I've wondered this since I first looked under my car last month. Aerodynamics? Something to mitigate mud/debris? A tool to funnel smallish animals squarely under the front tires? I've never seen these on a vehicle before.
     
  2. trils0n

    trils0n 2013 P85

    Joined:
    Feb 12, 2013
    Messages:
    1,280
    Location:
    SF Bay Area
    Aerodynamics. I notice them on lots of cars these days, now that I started looking for them after seeing them on the Model S.
     
  3. CHG-ON

    CHG-ON Still in love after all these miles

    Joined:
    Jun 24, 2014
    Messages:
    2,754
    Location:
    Santa Cruz Mountains, USA
    Yes, and they are quite common. Most noticeable on Corvettes. Pretty much only noticeable to geeks like me. Along with areo, they funnel ICE drivers very neatly and squarely under the tires.
     
  4. green1

    green1 Active Member

    Joined:
    Mar 25, 2014
    Messages:
    4,105
    Location:
    Calgary, Alberta, Canada
    Now that you've noticed them, you'll start to notice them on a lot of new cars, they're actually quite common. Seems to be for aerodynamics.
     
  5. edmeades

    edmeades Member

    Joined:
    May 21, 2015
    Messages:
    5
    Location:
    Tucson, AZ
    Yup, aero. The spinning wheel is the worst for airflow, so much so that even a flat plate perpendicular to the direction of travel is better.
     
  6. AWDtsla

    AWDtsla Active Member

    Joined:
    Mar 3, 2013
    Messages:
    2,130
    Location:
    NE
    Unfortunately it looks like they probably collapse at highway speeds. BMW's have hard ones.
     
  7. Caligula

    Caligula Member

    Joined:
    Oct 14, 2015
    Messages:
    600
    Location:
    San Diego
    But this also means they collapse when you park too close to a concrete stop or curb when pulling into the stall, instead of snapping off. I mean honestly, who among us hasn't pulled too far forward before?
     
  8. e-FTW

    e-FTW New electron smell

    Joined:
    Aug 23, 2015
    Messages:
    619
    Location:
    San Francisco, CA
    Exactly.
    But I still park my car's front-right on a stall mat. 3/4 inch hard rubber mat, that raises the car just enough so that this flap is not completely flattened when I pull up to the stop in my garage.
     
  9. sillydriver

    sillydriver Member

    Joined:
    Oct 19, 2014
    Messages:
    542
    Location:
    Middleburg, va
    Today I pulled too far forward parking at the post office, with the nose of the car over the curb. I looked to make sure nothing scraped and saw these little flaps ahead of the tires that I had never noticed before bent against the curb. I'm glad they're flexible.
     

Share This Page