Yesterday I found this Finnish guy called Santeri Pöyhönen who had made a lovely chart of his Opel Corsa e consumption at different speeds and outside temperatures.
Ok this looks pretty much same as car engine BSFC maps. I was wondering if you add lines like the kWh/1c there will it look even more like the engine maps or not.
Anyway this is how every cars consumption should be showed. In my ID3 tests the consumption change was 0,1kWh/1c on summer conditions so it was little bit more efficient thant the corsa. But I tested on no wind conditions and those are average of 30000km or so.
Link to original post at Linkedin where is little more data how its gathered etc:
https://www.linkedin.com/posts/spoyh...member_desktop
If you have a regular work route where you could drive different speeds you can make it yourself with little work. to see how your car compares.