History of Chrysler stake in the firm. Financial performance improved and Chrysler was generating a significant part of Daimler-Chrysler's profits from 2004 to 2005, as the other subsidiary, Mercedes-Benz, incurred costs for restructuring. By 2005, Chrysler was said to be the healthiest of the Detroit Three automakers (compared to General Motors and Ford Motor Company). As a result of Zetsche's apparent success in a turnaround of Chrysler, Juergen Schrempp, the CEO of parent company Daimler-Chrysler, was pressured to retire early. Zetsche was elevated to CEO of Daimler-Chrysler on January 1, 2006, and Thomas W. LaSorda became President and CEO of Chrysler Group. However,
General Motors EV1 companies' unreadiness to meet the ZEV requirement. In 2001, it proposed amendments that would grant automakers credit for producing advanced-technology, partial-zero emission vehicles, such as hybrid cars, in place of battery EVs. However, the industry used the relaxation of the rules to challenge the regulation as a whole. General Motors and Daimler-Chrysler filed suit against CARB in the US District Court in the Eastern District of California, successfully arguing that CARB's method of determining whether or not a vehicle qualified as an Advanced Technology Partial ZEV (AT PZEV) used the vehicle's fuel economy as one of the standards, in addition