It has been an extraordinary year for the car industry. During 2006, comparative valuations of the major companies swung around massively as shareholders tried to get to grips with which stocks would survive the structural changes that are sweeping through the sector. In this briefing, the last in our series of financial reviews, we look at the cost of technology changes for the car industry, focusing on climate change and other environmental issues. We include an overview of the competitive pressures, such as price competition, and we provide market share data for major vehicle groups. Chapter 4 looks at the financial status and changes in management for major manufacturers including VW, GM, Renault, PSA Peugeot, Citroën, BMW, Fiat, Ford and DaimlerChrysler.