Mitsubishi Motors on Thursday slashed its half-year and full-year earnings outlook, battered by special loss charges at its North American finance unit and weak sales in the US market, Reuters reported. Unveiling numbers that surprised and worried analysts, Japan's fourth-largest car maker said it would fall deep into the red for the half-year, forecasting a group net loss of 80 billion yen ($US673.7 million) for the April-September period, after earlier projecting a profit of 10 billion yen, Reuters added.