Had a bit of a range crisis on our last trip after a planned charge location was ICEd with no practical alternatives. Ended up drafting a FedEx semi pulling two trailers for about 15 miles at 70mph and less than 300wh/mile in an X90D. Sat about two car lengths behind ready to take action and let him air-tow us to the next charger. Felt nervous being so close, but it seemed the best option. It was weird watching the trip meter go up in destination % even as we covered miles. In the end, we hooked up at the next supercharger with 8 miles indicated remaining. Phew!