Volkswagen A.G.’s legal problems jumped into overdrive this week. More than 175 class actions in 32 states have been filed over the emissions scandal that erupted last month.

Almost all the lawsuits have been brought on behalf of consumers alleging they were duped into paying premium prices for “clean diesel” vehicles that exceeded U.S. regulatory standards. Others have been filed by dealership franchises. The cases are in addition to investigations by the U.S. Justice Department, the U.S. Environmental Protection Agency and attorneys general in at least 28 states.