The roaring engine of a Ford Mustang is a sound car lovers may recognize instantly. But sales of the iconic muscle car have slumped. So Ford Motor Company is launching a risky reboot: the new Mustang Mach-E. It’s a – QUIET – all-electric version with a 4-door S-U-V body style. Die-hard Mustang fans may cry foul – but Ford hopes the move draws new customers to the brand. The Mach-E not only looks and sounds different, it was developed using a whole new process.