South Korea\'s non-life insurers suffered massive losses from their car insurance business in the fiscal first half as heavy summer downpours led to a surge in claims, watchers said Wednesday.The combined net loss of 14 local non-life insurers\' auto insurance businesses reached 108.3 billion won (US$959.1 million) in the April-September period, according to industry data. Local insurers close their books on March 31.