Peering through the wispy roostertails kicked up behind the Hyundai Ioniq 5 N prototype as it rally-ripped over ... what's at the base of the rear windshield—a wiper. At the desert proving ...

The spoiler—which keeps the wiper stuck to the windshield in high winds—is coated in a light-absorbing charcoal powder to eliminate reflections for those inside the vehicle. Along with the ...