[CrazyStat]

A single data point, but my Model X (2018 75D) has averaged 326 Wh/mile over the last 2.5 years, vs a rated efficiency of 315 Wh/mile. It was at 321 before covid lockdowns started, which shifted my driving habits toward more less-efficient car trips.

Based on that I have a hard time believing that Tesla substantially exaggerates range. I reckon my single data point is probably worth at least as much as autocar.co.uk's single data point based on a couple orders of magnitude less driving.

[goodcanadian]

Also a single data point, but my Leaf averages a bit more than 4 miles per kWh, or slightly less than 250 Wh per mile. I'm not trying to make a claim that the Leaf is better--it depends greatly on the sort of driving that you are doing, but I don't buy that the Tesla has a significant advantage either.

[zlsa]

Leaf is a compact hatchback, whereas Model X is an SUV. A better comparison would be Leaf and Model S, a sedan, which is rated at 241Wh/mi (and can reach this in actual use[0].)

[0]: https://www.reddit.com/r/teslamotors/comments/bfhd9z/20000_m...

[goodcanadian]

Perhaps, I wasn't clear, but I was comparing to the 300 Wh per mile rating claimed for the Leaf upthread (I haven't looked it up for myself). I am comfortably beating that in real world use.

Edit: the point is that it is not clear that Tesla is much more efficient which was the original claim at the start of all this.

[CrazyStat]

Fair point. I don't know much about the Leaf; I was just going by the numbers I could find online.