Highway driving assistance features will allow the new Equus to stay in lane, slow down and speed up as necessary to avoid collisions. The price of the new Equus hasn’t been determined but should be similar to Hyundai’s current models, ranging from $61,500 to $68,750, officials said. The main markets for the new Equus will be South Korea and the U.S., company officials said at a briefing ahead of the Seoul Motor Show, which opened Friday.