Hyundai Motor sold a record number of vehicles in the U.S. in the first half of this year, the automaker said on Thursday. Combined sales of Hyundai and its affiliate Kia totaled 920,383 vehicles in the first six months of this year, up 3 percent from a year earlier. Hyundai including its luxury brand Genesis sold 489,656 vehicles, while Kia sold 430,727. The record sales were attributed to an increase in sales of eco-friendly vehicles, which jumped 47