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Tesla Model S P85D vs P85 Energy Consumption Test...

Discussion in 'Model S: Driving Dynamics' started by fiksegts, Dec 27, 2014.

  1. Alysashley79

    Alysashley79 Member

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    That's a fantastic write up! And something we've all been curious about!
     
  2. Todd Burch

    Todd Burch Electron Pilot

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    Score one for the scientific method (kinda).
     
  3. EarlyAdopter

    EarlyAdopter Active Member

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    I did something similar. Posted here. Only saw a 6% difference though.
     
  4. darthy001

    darthy001 Love my car, hope Tesla can get as great!

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    Hmm.. Better then what we have seen previously so thats encouraging. If the infamous normal-mode becomes reality I will be in the OK area personally.
     
  5. dlt

    dlt Member

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    When comparing these results you should also use same tires - everyone is now running with brand-new tires which may not have optimal rolling resistance compared to the used ones.
     
  6. EarlyAdopter

    EarlyAdopter Active Member

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    Yep, absolutely. That was one factor I was unable to control for.

    Looking forward to a back-to-back test with a P85D and a P85+ with the same tires.

    Anyone got access to both cars? Let's see some more data!
     
  7. fviken

    fviken Member

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  8. jerry33

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

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    Almost impossible unless the P85 has just put new tires on as you want them the same or close to the same manufacturing date. If that's not possible, four runs. One pair of runs with each car leading, then swap wheels and tires, then a second pair of runs with each car leading.
     
  9. HHHH

    HHHH Member

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    Interesting read.
     
  10. Vger

    Vger Active Member

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    Certainly valid and the proper science, but that seems like overkill to get to the threshold of generally applicable info.

    When I see data indicating it is difficult to get under 380 Wh/mi in normal highway driving with the P85D, that has me concerned. But if a F/W update, or 19" tires or both got the P85D consumption in moderate highway driving down to 330 Wh/mi, I would not worry that this is still a few percent more than typical P85 behaviour. It would be at least in the ballpark, and not likely to affect long-distance trip planning.
     
  11. dhanson865

    dhanson865 Active Member

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  12. huntjo

    huntjo Member

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    Hey I was just saying this in another thread
     

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