In the long arc of the automobile's evolution, range anxiety has stood as one of the last psychological walls between drivers and the electric future. BYD's newly unveiled Da Han sedan — stretching beyond a Mercedes S-Class in length yet priced around $44,300 — claims 626 miles on a single charge, powered by a lithium iron phosphate battery that trades exotic materials for durability and cost. Whether or not every mile of that figure survives real-world roads, the vehicle represents something larger: the moment when affordability, range, and low operating costs may no longer require a trade-of