AlanSubie4Life
Efficiency Obsessed Member
Interesting. I guess it's a YMMV situation (as always!) because as I said with my ICE I'm consistently inline with MPG ratings. Either way, can't wait to get rid of it and into my M3! Thanks for the discussion and educating me on the math. Much appreciated.
FWIW my lifetime average is 280Wh/mi. With 18” I would likely be closer to 260Wh/mi. If you are doing California freeway speeds with minimal traffic (70-80mph) you’re going to be at over 260Wh/mi with no heat use. Which means 250 miles max. No amount of fiddling with the AC will help this.
You can plug along at 60-65mph and you’ll do awesome, but that’s usually pretty unsafe. It makes a huge difference, as does traffic (due to drafting effects), rain, wind, etc.