The race to build the world’s first production electric supercar is over. And Audi blinked. It’s not that Ingolstadt’s on again/off again R8 e-tron wasn’t a deliciously indulgent glimpse into what one-percenters will add to their rolling war chest. In fact, there’s still a glimmer of hope the four-ringed brand might actually develop and sell the electrified R8 in limited numbers. But it wasn’t long after Audi teased journalists with parking-lot-speed test drives on closed roads that the sleek EV disappeared from the product planning lineup.