Reading a test in January's Car Magazine comparing the VW ID.3, Polestar 2 and Tesla Model 3. I know the VW isn't in the same category as the other two, but the test was more about 'early adopters' rather than direct competitors.
But I was perplexed as to why the Polestar, which has a slightly bigger battery than the Tesla (78kWh vs 75kWh) has a range some 60 miles shorter. During the article it was mentioned that it was because of Tesla's much more extensive experience with battery management. I'm sure that certainly plays a part, but looking at the specs page, another glaring candidate for the difference became apparent. The Telsa weighs 1847kg, not exactly a lightweight granted, but the Polestar weighs 2123kg!. That extra 276kg is going to be felt when accelerating and going uphill and is surely a factor in the range. In fact the Tesla is only 53kg heavier than the ID.3, which itself is around the size of a Golf.
For the benefit of the anti-electric car brigade, I must point out that they were very critical of the public charging situation. Mentioned were, "dramatically varying electricity prices, long queues, out of order docking stations, illegible displays, randomly reduced charging power and busy hotlines"!. It is this which means having an electric van for my work isn't really viable at the moment due to no off street parking.
But as the electric future draws nearer, it will be the miles per kWh folk will be looking at rather than mpg (especially if range anxiety is going to be a problem). Official figures say the Tesla does 3.79 miles per kWh, the Polestar does 3.22, but the VW was the best of the trio at 3.96 miles per kWh. In the same issue, in the 'our cars' section, where a Zoe is being run as a long term test, the official miles per kWh is given as 4.6, but the actual figure (2 months so far) is 4.2. Still pretty good compared to the brand new ID.3 though.
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