Hyundai Motor Co. said Thursday its IONIQ 6 electric vehicle has earned the top safety rating from an independent vehicle assessment organization in Europe. The IONIQ 6 achieved the highest five-star safety rating from the European New Car Assessment Programme (Euro NCAP) in four categories, the company said in a statement.The Euro NCAP tested the IONIQ 6 EV in four areas: the safety of adult passengers, the safety of children in rear seats, the safety assistance system and the safety of passers-by and bicycles on roads,