By Jon LeSage Kia’s Niro EX just took the Guinness World Record for lowest fuel consumption driving coast-to-coast in a hybrid car averaging 76.6 mpg. The hybrid crossover was driven 3,715.4 miles from Los Angeles City Hall to New York City Hall. Well-known “hyper miler” Wayne Gerdes of Carlsbad, Calif., and co-driver Robert Winger of...