An attendee takes a photograph of a Ford Motor Co. Lincoln navigator concept sports utility vehicle (SUV) during the press day of the Seoul Motor Show in Goyang, South Korea, on Thursday, March 30, 2017. At the Seoul Motor Show this week, Hyundai Motor Co. will showcase a fuel-cell SUV prototype with a range of more than 800 kilometers (about 500 miles) on a single refuel. Photographer: SeongJoon Cho/Bloomberg via Getty Images