Michigan, the center of U.S. automaker manufacturing, faces growing competition in the U.S. and globally.
Groups acquire various brands, and one also buys a commercial truck business.
Michigan's U.S. senators are backing a proposal that would allow automakers to apply credits for model years as far back as 2009 to help them meet future standards to require their car and truck fleets to average 41 miles per gallon by 2021, reports the Detroit News.
Michigan Secretary of State Ruth Johnson has suspended the licenses of five Detroit used-vehicle dealers after an investigation uncovered multiple fraudulent acts, including the sale of cars containing stolen parts and record-keeping violations.
Dealers' zero-tolerance drug policies are still valid in states that have legalized marijuana for medical or recreational use.
Governor Rick Snyder signed into law yesterday tighter restrictions on selling vehicles directly to consumers. The new law now effectively bans Tesla Motors from selling vehicles in the state.
