When I first saw the specs on the battery choices regarding 240V charging speeds, I admit I was a bit disappointed. I didn't think for a second the charge amp capacity would be anything less than on S (48A). 32A on the standard battery and 40A on the long range battery had me scratching my head. But then I had another thought, 2 actually... First, are we positive these 240V charge specs are tied to the battery itself, and not to the UMC that comes with the respective cars? In other words, is it possible the UMC that comes with the standard battery vehicle is set to 32A, and the UMC that comes with the long range battery vehicle is set to 40A? So when Tesla quotes the recharge rates of the 2 battery sizes, technically they might be quoting the charge rate of the UMC included with each vehicle? Of course, this would mean they are making 2 different UMCs - not exactly an efficient thing as far as supply chain is concerned. Under this scenario, I'm wondering if there's a chance the car's built-in charger is indeed rated at 48A, but would only be fully utilized when using the hard wired Wall Charger?? Otherwise, there is zero speed difference between using a Wall Charger and the included UMC (yea, I know, there are other advantages to the WC compared to UMC). Except for keeping the UMC handy in the car for trips, there is no advantage to the WC for M3. A little disappointing. So... are the UMCs really different between the battery configs, or do they just dial themselves down per the car's request (40 vs 32amp).