Ford this week confirmed it will indefinitely delay the launch of a new, all-electric SUV to put more focus on hybrids. It’s also cut back on production of its F-150 Lightning pickup. But while some EV skeptics take these moves as a sign that the market for all-electric vehicles is waning, Ford actually saw a surge during the first quarter, notably for its Mustang Mach-E. Here’s how it charged up demand.