More than three years after Elon Musk stunned the auto industry with an electric pickup truck that looked more like a stealth fighter than a way to haul two-by-fours and drywall, Tesla said last month that it would begin building the vehicle by the end of 2023.

The announcement has helped fuel a recovery in Tesla’s share price, but also revived a debate about whether the often-delayed pickup, called the Cybertruck, is a work of genius or evidence of Mr. Musk’s hubris.

It would be very unlike Mr. Musk, Tesla’s chief executive, to build a pickup that looked anything like the Ford F-150, Chevrolet Silverado or Ram 1500 pickup — three of the best-selling vehicles in the United States.

With its angular stainless steel body, the Cybertruck is an attempt to redefine the pickup in the same way that Tesla upended the conventional wisdom of the auto industry by proving that battery-powered vehicles could be practical and profitable.