I make sure to have 100% charge before I leave, and then I drive it down to 5-10% and hit up a super charger. The batteries charge the fastest from 0-50%(~15 mins), so I end up having about 60-70% charge by the time I'm heading out. Then I just repeat the process. I also arrive at my destination with 5-10%. I have a 2023 model Y for the record.

I also try to drive in a manner that is friendliest to the battery (ie I'm not accelerating a bunch to pass people or driving 90 mph), and almost all the driving is on a highway. But, that's how I naturally drive in my gas car as well.

I do ~Denver to ~Salt Lake City and back 2x/year through the Wyoming route and I've done it 6 times so far in a Tesla and 4 times in a gas SUV. I do it in the early/late summer so temperatures are warm, which I'm sure helps the mileage.

The tesla mapper site claims you can do it with only 35 mins charging, but I prefer the northern route, and my actual departure/destinations are about ~1hr more driving, but I'm sure that wouldn't add more than 45 minutes to the charging time: https://www.tesla.com/trips#/?v=LR_RWD_NV36&o=Denver,%20CO,%...

That’s pretty cool!

How does cold weather affect this? What about when there is no supercharger (I live in Germany)?

Or driving faster, 160kmh/100mph in Germany is normal.