Automakers blast proposed US fuel efficiency increases, while Tesla urges stricter rules

Major automakers criticize the Biden administration's proposed fuel economy standards as too stringent.
Automakers warn the new rules could add thousands to vehicle costs and result in billions in non-compliance penalties.
Tesla urges even stricter annual increases to fuel efficiency standards to further push electric vehicle adoption.
The administration faces pressure from states, industries, and automakers to drop or revise the proposed electric vehicle mandates.
Ford warns the fuel economy plan threatens substantial economic hardship and penalties up to $1 billion.