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Discussion Starter #1
I have a 85kWh Model S on loan while Tesla repair my Roadster following the latest breakdown.

I drove my regular ~180 mile trip last weekend and it looks as if the Model S is using twice as much energy as the Roadster.

This weekend I'm driving 500+ miles and will log the energy consumption more accurately but for now I believe the range predictor on the Tesla website is hopelessly optimistic...

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That's a pretty big gap. In LA driving we get closer to 225 wh per mile on the Roadster and 310 wh per mile on our Model S 85...

Weather, driving style, road conditions, elevation changes. All that stuff factors in.
 

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Discussion Starter #3
Weather, driving style, road conditions, elevation changes. All that stuff factors in.
It was a typical autumn drive with no rain, light wind, speed limits observed, and the same route I've driven for the last 4+ years.

I have no doubt that the Model S 'typical' range is nothing like the figures quoted by Tesla on their website...

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We use New European Driving Cycle (here) not EPA. My lawyers tell me that "typical" has a very specific legal interpretation within the EU :rolleyes:
I don't know what to tell you @Kevin Sharpe. I don't think of you as "typical". Closer to extraordinary, perhaps.

Either way, the two vehicles do behave differently and the Model S is a bit of an energy hog compared to the Roadster when it is being used. The Roadster, however, is a bit of an energy hog for vampire drain (relative to the Model S). And Tesla vehicles (the both of them) are a bit of an energy hog for vampire drain compared to my old Active E or my mother's Leaf.
 

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I have seen 270 this was on a long haul motorway drive with last 40 on slower country roads. Kevin looking at the graph in the photo your a little heavy footed, the darker Orange the more your thrashing it :)

What is your watts per mile, with normal driving on UK motorways I see about 310 - 330 on the long drive I was down at 302 over the journey
 

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I have seen 270 this was on a long haul motorway drive with last 40 on slower country roads. Kevin looking at the graph in the photo your a little heavy footed, the darker Orange the more your thrashing it :)

What is your watts per mile, with normal driving on UK motorways I see about 310 - 330 on the long drive I was down at 302 over the journey
Based on the photo, the last 30 miles or minutes (I always have to doublecheck) he was closer to 415 Wh per mile.
 

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Agree but so does every manufacturer who quotes that, it's done at steady speed (55 I think) with no aircon, very unrealistic. Same with nissan quoting over 100 for the leaf.
 

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Agree but so does every manufacturer who quotes that, it's done at steady speed (55 I think) with no aircon, very unrealistic. Same with nissan quoting over 100 for the leaf.
NEDC for current leaf is 124 miles...!
 

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Agree but so does every manufacturer who quotes that, it's done at steady speed (55 I think) with no aircon, very unrealistic.
No, I could hit NEDC range in the Roadster but don't see any Model S owners achieving anything like that range... I will have a much better idea of real world range after this weekend.
 

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Interested to hear what you find Kevin!
 

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It can be done... Remember the Father and Son from a few years ago.

I doubt anyone can hit that 312 mile limit because a 312 mile drive in flat roads at a constant 55 mph is just.... BORING.
 

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Discussion Starter #18
I doubt anyone can hit that 312 mile limit because a 312 mile drive in flat roads at a constant 55 mph is just.... BORING.
The difference between 312 miles (that most people expect from Tesla marketing) and 239 miles (that the car is predicting) is huge and yet another Model S surprise :rolleyes:
 

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The difference between 312 miles (that most people expect from Tesla marketing) and 239 miles (that the car is predicting) is huge and yet another Model S surprise :rolleyes:
How does that differ from the marketing range of any other BEV in the UK showing the NEDC range being but achievable in the real world?
 

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Discussion Starter #20
How does that differ from the marketing range of any other BEV in the UK showing the NEDC range being but achievable in the real world?
I'm comparing the real world experience of driving the Tesla Roadster against the Tesla Model S over a ~180 mile journey that I have driven many times in the last 4.5 years.

I believe the 312 mile NEDC range of the Model S is unachievable unlike the 211 mile NEDC range of the Roadster. My hunch is that the huge weight of the Model S is severely depressing the real world range.
 
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