...According to one of Tesla's engineers, our Sport model – like all press fleet vehicles – has lived a rough life over the last year and it's taken its toll on the battery. Your mileage – literally – will vary, but we've been told repeatedly that the average owner routinely sees in excess of 200 miles per charge. Oh, and if you're without a 220-watt outlet, Tesla supplies a normal 110-watt cable that works on any standard three-prong outlet. However, despite what simple math might indicate (half of 220 means a 12-hour charge?), the 110-watt cable can only transfer five miles for each hour of charging time...