DutchIpaceOwner said:
Beware that 22" consumes far more power than the smaller sizes. There are plenty of reports on Tesla wheel-size performance online:
"23.3% more consumption for Model X P100D with 22″ vs 20″ wheels."
https://www.google.nl/amp/s/electrek.co/2017/11/10/tesla-model-s-model-x-wheel-size-affect-efficency/amp/
Is the article on Tesla tests helpful at all ? Yes, but it would have been more informative if it added missing info like Tyre size and weights, and one would assume all the tyres were new, and all tests conducted under same conditions. In addition they don't say if the tests were done on all summer or all-weather tyres - while as long they were all the same it should be the same scaling ... the %'s may be less on summer or more on All Season.
However it does show a staged increase .... what %'s would apply to the Jag no one knows yet.
The Width and diameter of the
tyre itself is more important than just the dia of the wheel.
Also what isn't listed in that article is the weight of the wheels nor the drag coefficient on the combined wheel/tyre combo.
That article is great for people buying Tesla's and doesn't necessarily relate to the Jag Wheels. What we do know is this :-
.
- Wider Tyre's mean great resistance = less miles.
- Heavier Wheel + Tyre combinations = less miles.
- Less drag efficient wheels = less miles.
- Overall Tyre Diameter = less miles.
- And thanks to Darkhelmet the tyre sizes are :-
<LIST>
</LIST>
As an example if a 20" Wheel + Tyre total diameter was the same as a 22" + Tyre total diameter, and they combination weighed the same, had the same drag coefficient , and same width ... then the difference in miles would be Zero.
Based on the sizes that Darkhelmet provided the width is greater between 18" and 22"'s , which is an increase of 8.5% surface touching the ground, but the overall diameter is roughly the same. Therefore the only other factors are :-
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- The drag coefficient of all their wheels.
- The weight of the wheels + tyre combo
Which we don't have - and we don't know what the extra widths 8.5% means in performance ... I would expect it's more than just 8% less range.
Finally that article did mention one thing :-
Some of the tests were performed on a dyno machine and at 50 mph (80 km/h). In real-world conditions and at higher highway speeds, other factors like wind resistance set in and reduce the importance of the rolling resistance, which is what is accounted for in those tests.
In conclusion we have no hard data for the I-Pace, however it is probably safe to say that you will lose some range by picking bigger wheels. You'll have to make that call if it's worth it
