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Tesla Model 3 Performance vs RWD consumption - Real Driving Data from 233 Cars

Bo (ABRP)

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As you may already know, ABetterRouteplanner.com collects driving data from contributing users. This data is used to improve the ABRP car models (i.e. the mathematical representation of each type of car) and also, to give back to the ABRP community providing the data, to be published here in the blog!

At this point, we have received a lot of Model 3 Long Range driving data, and even enough data from Model 3 Performance to draw some first conclusions on how they differ. We have 220 different Model 3 Long Range users who have contributed a total of 70,000 km (43,000 miles) of driving, which caters for very good data. Most of these Model 3 Long Range are the RWD version. For P3D, there is "only" 13 cars contributing so far, having driven around 7,000 km (4,300 miles) of driving, which means that statistics is a little bit more shaky, but still usable.

Just to show off what those numbers mean, this is the graph of the 7,000 km of P3D data - every blue point corresponds to 30 seconds of driving at a certain speed and how much power that car has consumed during those 30 seconds. Yellow dots show the median power consumption for that speed and red line is our fitted model.

3p20.png.7b2a969422e01bded28d166f52241e08.png

Now let's boil that data down to something more understandable! First, the reference consumption, constant speed on flat land at 110 km/h (65 mph) becomes:

  • Tesla P3D: 173 Wh/km at 110 km/h (267 Wh/km at 65 mph)
  • Tesla Model 3 Long Range, mostly RWD: 150 Wh/km at 110 km/h (232 Wh/km at 65 mph)

This means that our real-world driving data shows that the P3D consumes about 15% more than the RWD version at highway speeds. This is expected, or actually somewhat low - most P3Ds run on 20" sports wheels instead of 18" Aeros, and perhaps more importantly, P3Ds may be driven more like performance cars by their drivers.

(Note that in https://abetterrouteplanner.com, we add some margin to the reference consumption to be on the safe side.)

Looking at efficiency numbers for different speeds, we get the following comparison between the Tesla Model 3 Long Range, P3D and Model S100D:

Tesla_3_LR-Tesla_P3D-Tesla_S100D_efficiency_metric.png.78cb018e350cb4396263d576a005abb2.png

We can see from this graph that there is a clear difference in efficiency between the RWD and the P3D, and at higher speeds where the Aero wheels with better aerodynamics, the difference grows even more. This efficiency leads to this range-vs-speed graph:

Tesla_3_LR-Tesla_P3D-Tesla_S100D_range_metric.png.c4676b7425f892b2b568bc27def6366c.png

 

And finally, in our standard road-trip challenge of a virtual 1,000 km (621 mile) drive with fast chargers every 200 km gives us:

  • Tesla Model 3 Long Range: Total trip time 09:44, of which charging 01:24.
  • Tesla Model P3D: Total trip time 09:59 of which charging 01:39.
  • Tesla Model S100D: Total trip time 10:05 of which charging 01:45.

So the slightly higher consumption in a P3D does equate to 15 minutes more charging time in a 1,000 km road trip. Not too shabby!

Appendix - Graphs in Imperial Units

 

Tesla_3_LR-Tesla_P3D-Tesla_S100D_efficiency_imperial.png.dbfdd2ea5744358ca34158e1d2119a4d.png

Tesla_3_LR-Tesla_P3D-Tesla_S100D_range_imperial.png.cffda5dec533198d44fcf2d30aee83e7.png

3long.png



9 Comments


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Guest Ken

Posted

I suspect that someone accidentally swapped the numbers in the summary after the first graph: 173Wh/km @110kph is 278Wh/mi @68mph. Similarly, 150Wh/km @110kph is 241Wh/mi @68mph.

This makes the 232Wh/mi @65mph for the P3D unlikely; I don't think the efficiency of the LR RWD car drops from 241Wh/mi @68mph to 267Wh/mi @65mph.

Also, 110kph is 68mph, not 65mph.

 

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Guest Some p3d

Posted

Something definitely wrong wife my P3D getting consistently over 310 Kw/H at 70mph.

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Guest Big Earl

Posted

48 minutes ago, Guest Some p3d said:

Something definitely wrong wife my P3D getting consistently over 310 Kw/H at 70mph.

310 Wh/km or 310 Wh/mi?  Depending on temperature, 310 Wh/mi is perfectly reasonable for a P3D.

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Guest Big Earl

Posted

Bo, do you happen to have any numbers for the non-P AWD?  Hopefully I'm not the only one contributing data.  :)

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22 hours ago, Guest Ken said:

I suspect that someone accidentally swapped the numbers in the summary after the first graph: 173Wh/km @110kph is 278Wh/mi @68mph. Similarly, 150Wh/km @110kph is 241Wh/mi @68mph.

This makes the 232Wh/mi @65mph for the P3D unlikely; I don't think the efficiency of the LR RWD car drops from 241Wh/mi @68mph to 267Wh/mi @65mph.

Also, 110kph is 68mph, not 65mph.

 

Thanks for the catch, the imperial unit efficiency numbers were switched. Now fixed!

Also, we do not treat 110 km/h as equal to 65 mph. These speeds were chosen to be common highway speeds in the different regions. But perhaps we should have chosen 120 km/h which is pretty much 75 mph spot on 🙂

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12 hours ago, Guest Big Earl said:

Bo, do you happen to have any numbers for the non-P AWD?  Hopefully I'm not the only one contributing data.  🙂

The issue with Model 3 specifically is that the option codes reported by the MyTesla API are broken - they are all the same for any Model 3. This means that we have to trust what the user chooses in ABRP as car model, and this is quite often not completely correct. Also, we have, so far been lacking a choice for AWD. Will fix that soon!

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Guest KarenRei

Posted

You should probably include some data as to what weather this data was collected in, since it makes such a huge difference.

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Guest KarenRei

Posted

Also, look forward to seeing some AWD data from you  🙂 Do you also track what wheels people have?  I know that each category you further break things down by reduces the amount of data you'd have, but...

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2 hours ago, Guest KarenRei said:

Also, look forward to seeing some AWD data from you  🙂 Do you also track what wheels people have?  I know that each category you further break things down by reduces the amount of data you'd have, but...

I'd love to break it down more, but the issue is that Model 3s all report exactly the same option codes through the API, so I can only use what the owners select as car model. We recently included specific AWD 18- and 19-inch wheel models so hopefully this will enable us to look at the differences between AWD and non-AWD too. 

We do log outside temperature; we'll look at that once winter is coming (in the northern hemisphere). Otherwise, the median filtering we do at each speed means that the curve we get is for the most common weather and driving - likely nice dry summer driving since the data is mostly from the summer and early fall.

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