Appreciate we are getting to data and facts. Would like to see more analysis with real transparent numbers so we all can evaluate the math.I prefer to use mi/kWh because it is easier to translate that into distance, and range is my most important reason for paying for the Max pack. In any case, 516 Wh/mi is 1.94 mi/kWh, and I agree that might be possible at 65 mph. Maybe. If the weather is great and there is no excessive load like a resistance heater. It will be harder to achieve that efficiency at 75 mph, of course.
So if the usable capacity of the 180 pack is 162 kWh, that is a highway range of 314 miles, assuming you drive to empty. Most people will aim to recharge no lower than 10%, and a DCFC will probably hit the cliff at 80%, so really on a road trip you are using 70% of 162 kWh, which means a range of 220 miles between chargers.
EVs have a long way to go before they can replace ICE for road trips. Not that I won't do it, but most people will find that sort of range frustrating. The Max pack definitely helps, and if you can afford it, I would definitely get the max pack.
I have not ordered yet, because I want to see real world testing first and I am holding out for the removable roof. But if I do order, it will be the biggest battery they offer.
If the prior data analysis is true, seems you will get say 50% of the rating, to be safe and stop for a charge. So the 400 mile pack, will yield you useful 200+-miles avg. and the 300 mile pack 150+-miles avg.
Is that what the analysis and data is pointing to from our forum SMEs?