Net profit at Hyundai Motor rose 46% year on year to 893.4 billion won ($US744.7 million) thanks to strong home market sales boosted by a tax cut, Dow Jones reported. Sales in the six months ended June 30 rose 11% on the year to 12.32 trillion won and Hyundai sold 814,809 vehicles during the half, a rise of 1.3% year on year, Dow Jones said.