General Motors reported preliminary financial results for the first quarter of 2008. While revenue declined slightly, adjusted automotive earnings improved by over $160 million compared to the previous year. However, reported automotive earnings declined by $118 million. The company posted an adjusted net loss of $350 million but a reported net loss of $3.3 billion due to several special items including writing down the value of its investment in GMAC. Liquidity remained strong at $23.9 billion despite negative operating cash flow driven by lower North American production including impacts of an auto parts strike.