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Will RWD go extinct too?

Discussion in 'Model S' started by Maximilien, Apr 23, 2017.

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Will RWD be gone in Model S in the future?

  1. Yes, very likely.

    58 vote(s)
    49.6%
  2. No, not likely.

    59 vote(s)
    50.4%
  1. Skotty

    Skotty 2014 Model S P85

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    As someone who doesn't hypermile and owns a P85, I can tell you that the RWD 85 only gets about 240 miles on the highway. That said, I seriously doubt the claim that a 60D can do the same. I'll believe that when I see it with my own eyes.
     
  2. jelloslug

    jelloslug Active Member

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    I have done it many, many times as well as several others. The 60D/75D at highway speeds consumes ~240 wh/m under normal driving conditions where the 85 RWD consumes ~310 wh/m.
     
    • Like x 1
  3. croman

    croman Active Member

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    I just drove 237 miles in one go for Easter when my car was a 60D.
     
    • Like x 2
  4. jaguar36

    jaguar36 Active Member

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    You're confusing the max output of the motor with the max output of the battery. There are only two Tesla motors, the large one, which is in all the RWD cars, and the PXXDs and the small one which is the front motor in all Ds and the rear in the small battery Ds.

    The small motor is more efficient than the large motor, so on the Ds they can sleep the large motor on the highway and take advantage of that greater efficiency. It is certainly an engineered feature, not an accident.
     
    • Like x 1
  5. vigge50

    vigge50 Member

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    So what is the differens between P85 and 85 then?
     
  6. AnxietyRanger

    AnxietyRanger Well-Known Member

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    I recall three different sizes in Tesla's images: the original 60/85 motor, the Performance rear motor as well as the small dual-motor engine used in back of non-Performance dual-motors and front of all dual-motor cars.

    See this image for example, showing a larger RWD 60 motor while the AWD version has two smaller motors. Assuming these images mean, anything, of course.

    And I agree it is of course possible I remember wrong and that big motor on the 60 is the same one as Performance models have.

    [​IMG]
     
  7. AnxietyRanger

    AnxietyRanger Well-Known Member

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    I think @jaguar36 is right on this one and my hazy memory just played tricks. There were three variations of combos, not three different motors:

    [​IMG]
     
  8. AnxietyRanger

    AnxietyRanger Well-Known Member

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    Given that, was Model S 85 just a software-limited P85 or was there hardware difference at all? Not talking about brake calipers or spoilers or bagdes, but the drivetrain.

    Edit: Apparently it had a different inverter.

    [​IMG]
     
  9. Zextraterrestrial

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    software. I though the inverter was different too but not 100% sure on this. In 2013 there were different places where they staged the drive units for P and non P cars in the factory. not sure they were really different though
     
  10. iqless

    iqless Member

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    Very interesting. So what's the difference between 60D/75D and 85D/90D/100D? As far as I can remember the first can do 0-60 in 5.2 seconds, the rest is 4.2 seconds.
     
  11. jelloslug

    jelloslug Active Member

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    the 60D/75D is Tesla rated @ 5.2 seconds and the 90D/100D is rated @ 4.2 seconds. I feel sure that the 85D is rated at 4.2 also.
     
  12. vigge50

    vigge50 Member

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    As I have understand it the 85D/90D have more modules wish means that it could delivered higher current and therefore faster acceleration.
     
  13. DIL

    DIL Member

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    You're not alone. RWD feels dynamically superior in dry conditions. If there was true torque vectoring on all 4 wheels, that might convince me otherwise.
     
  14. DIL

    DIL Member

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    Part of Tesla's stated acceleration numbers is simply the fact that the power is put down more efficiently (better traction) in the D versions
     
  15. Maximilien

    Maximilien Member

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    I must say that the Tesla order page changed a lot.

    Interesting some members here saved some screenshots from the past.
     
    • Disagree x 1
  16. brianman

    brianman Burrito Founder

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    I'm with you on this one at least 5 times throughout the year (autocross).
     
  17. d.c.palmer

    d.c.palmer 8 years of EV driving

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    Interesting thread. My P90DL consumes 20% more energy than my P85 - that's right 20% !!!

    Before I handed my P85 to my wife, my lifetime average (2.5 years, 30K miles) for the P85 was 315 Wh/mi. On long trips I calculated my range was ca. 285 miles - that was with 4 occupants, A/C turned on, but keeping the highway speed to ca. 60 mph.

    Switching to the dual-motor P90DL was a bit of a shock: on exactly the same routes, with exactly the same driving conditions, the car used almost exactly 20% more energy. Switching to "Range Mode" didn't really make much different - despite Tesla's claims. Sure, the car is about 5% heavier and sure I have stickier tyres (21" instead of 20"), but I had been hoping that, for longer trips, these would be offset by the Torque Sleep in "Range Mode".

    (All the more reason to keep pushing Tesla to deliver their promised - and so far failed - upgrade to the 100 kWh battery pack.)
     
    • Informative x 1
  18. Jeff4155

    Jeff4155 Member

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    In all honesty, I don't think so if you cater to the warmer climate parts of the world like ours there is no reason to have all wheel drive unless you are going off road, but then again if Tesla can sell a 4 wheel drive vehicle for the same price as the 2wheel drive I doubt anyone is going to complain.
     
  19. jelloslug

    jelloslug Active Member

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    My lifetime running average in my 75D (formally 60D) is 280 wh/m over ~20k miles. Expressway trips (usually around 70+ MPH or so) usually run ~240 wh/m.
     
  20. jelloslug

    jelloslug Active Member

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    Unless you want the added range on expressway trips.
     

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