UPDATE 1-Hyundai posts surprise Q4 profit fall on currency, mileage fiasco
January 24, 2013 at 00:23 AM EST
*Hyundai gains in China as Japanese rivals struggle. SEOUL, Jan 24- Hyundai Motor Co posted a surprise quarterly profit decline after a stronger local currency and the cost of compensating drivers in North America for overstated fuel-economy claims dented car sales.