So I wasn't quite sure if to put this thread here or in Battery and charging, but as it's directly related to suspension changing I thought here more appropriate. So my question as someone who's never experienced the low setting (still not gotten my 5.9 yet) is how much of an impact it has on the actual usage of Wh/km (or Wh/mile). The reason I ask is that running on my 21" wheels in 5C weather I'm getting on average 220Wh/km, which is about 8% worse than the typical range (EU model) and far far worse than one would expect to reach the actual 500km that Tesla advertises. And I'm driving at their spec speed of 88-90km/h on a flat road with close to no wind in any direction. And I know another Model S owner (S85 unlike my P85 and on 19" wheels) who also got 220Wh/km on the same route yesterday and the weather is almost identical so the 21" vs 19" probably have close to no real impact. I know a big part of it is the temperature and while the HVAC has no true impact (I turned it off for ~10km and the chart remained unchanged) I'm guessing battery might be getting some heating though I had been driving for well over 150km by that time. The air resistance of +5C humid air is probably far higher than +20C dry air so that will account for some of it, the 21" should account for another ~5% if I've understood it about right, but how much of an impact does it have of driving on Standard height instead of Low? Those with 5.9 could easily test it on a straight road dropping the car to low and seeing on the 10km chart how the usage changes. Oh and my tires are inflated to just above the spec (3.1 atm) and the car is ~4 months old with 10 000km on it. Just trying to figure out what the various impacting conditions are as I plan a 450km trip in a month where time is of the essence and I need to figure out if I can somehow make it without charging or if I should stop for 2h and charge (got single charger only so ~40km/h typical range increase). Today I did 368.3km using up 79.4 kWh averaging 216Wh/km. I ended with 4% SOC and I charged at my interim stop ~4% so basically arrived with empty battery had I not charged. And 216Wh/km is ca 350Wh/mile so it's not utopically high. To make the 450km in 80kWh usage (pretty much maximum I would dare) it takes 177Wh/km or basically I need to reduce my current usage by 20%.