China has moved to curb a fierce price war between automakers sector that has caused massive losses for the industry China issues new rules to curb auto price war after January passenger car sales drop 20%By CHAN HO-HIMAP Business WriterThe Associated PressHONG KONG HONG KONG (AP) -- China moved Thursday to curb a fierce price war among automakers that has caused massive losses for the industry, after passenger car sales dropped nearly 20% in January from the year before, the fastest pace in almost two years.