Hyundai Motor Co. and Kia Motors Corp. took the wraps off the ix25 sub-compact sport utility vehicle (SUV) and the brand-new K4 midsize sedan at the Beijing International Automotive Exhibition, the companies said Sunday. The two largest South Korean automakers and flagships of Hyundai Motor Group, the world's fifth-largest automotive conglomerate, said the global debut of the concept car models took place at the China International Exhibition Center in the Chinese capital city. The nine-day exhibition will run through April 29