- Seoul, is still fresh in mind when Hyundai Sonata has just been named as the safest car version of the Insurance Institute for Highway Safety (IIHS). Now Hyundai Sonata sedan having problems. Hyundai Sonata having problems at the front door lock mechanism. The result was forced to suspend sales of Hyundai cars in the U.S. sobs. "We are delaying the sale because the door is problematic. We are looking to improve this problem," said the Hyundai official told Reuters on Wednesday (24/2/2010). The news brought immediate negative impact on the stock Hyundai. Hyundai shares fell 4.3percent directly in the Korean stock exchange. Hyundai had a chance to enjoy the sweetness of car sales in the U.S.. This can be seen from the number of sales increased to 8.3 per cent to 435,064 units in the U.S. in 2009lalu. Hyundai's market share in the U.S. increased to 4.2percent from 3 percent from 2008. This year Hyundai targets increased market share to 4.5 percent in the United States. To achieve this, Hyundai will launch a new product. One of them Quattroporte sedan at the Geneva car show Motor Show. Is Hyundai will wind up like like Toyota in the U.S.?