General Motors, Fiat Chrysler, Toyota and many others in the auto industry are siding with the Trump administration in a lawsuit over whether California has the right to set its own greenhouse gas emissions and fuel economy standards.

California sued Friday to stop the Trump administration from revoking its authority to set greenhouse gas emission and fuel economy standards for cars and trucks, enlisting help from 22 other states in a battle that will shape a key component...

The Trump administration's decision to stop California from setting its own emission standards for cars and trucks would undermine the state's ability to convince the world's largest automakers that they should make more environmentally friendly vehicles.

WASHINGTON (AP) — The Trump administration is poised to revoke California's authority to set auto mileage standards, asserting that only the federal government has the power to regulate greenhouse gas emissions and fuel economy.

A coalition of states sued the Trump administration Friday for the second time to block a planned reduction in the penalties automakers pay when they fail to meet fuel economy standards. Twelve states and the District of Columbia sued the...

DETROIT (AP) — Four major automakers have reached a deal with California to increase gas mileage and greenhouse gas emissions standards, bypassing the Trump administration's plan to freeze standards at 2021 levels. Ford, BMW, Honda and Volkswagen are parties to...

America's auto industry is bracing for a potential escalation in President Donald Trump's tariff war with the world, one that could weaken the global auto industry and economy, inflate car prices and trigger a backlash in Congress. Late Sunday, the...

China confirmed it will cut tariffs on American-built cars as part of a ceasefire temporary agreement in the ongoing trade war between the two countries. The country's Ministry of Finance said Friday that the temporary reductions will take effect on...