While it is interesting to
While it is interesting to look at the numbers, I believe that your Core Efficiency calculations are fundamentally flawed. The way that you calculate the weight in tries to justify the bigger vehicle's greater weight by showing more efficiency per pound. But ideally, you always want lower vehicle weight/drag and provide better efficiency, leading to more range. When I plug in my next EV, the Aptera. The top range model is supposed to weigh 2200lbs, have a 100kWh battery, and go 1000 miles per charge. Using your formula the Aptera has a 4.55 Core Efficiency, which is just a bit better than the Model X despite weighing almost 1/3rd as much and having almost 3 times the range. And the Base Aptera with a 25kWh battery, 250 mile range, and 1,850lb weight, manages a lower 5.4 Core Efficiency rating. I think that weight should not be included because how far your EV actually goes on a given charge, is the valuable number to look at. Looking at it from a traditional gas car's efficiency, your miles per gallon doesn't have a weight component in it's calculation. And the same goes for EVs. I agree that Tesla is well ahead of other automakers in their battery development and efficiency. And further, I agree that the 4680 batteries show great promise in terms of design, longevity, and energy efficiency, and also in terms of being cleaner, quicker and easier to produce than traditional batteries. But the best calculation for EV efficiency is simply the actual average miles driven for a given amount of energy used (miles/kWh).