The Mack Institute asks
Will legislation eliminating the unit limit per manufacturer for the U.S. federal electric vehicle tax credit become law before 1 January 2020?
The Qualified Plug-In Electric Drive Motor Vehicle Credit applies to the first 200,000 units sold by a manufacturer (The IRS, Cornell Law). Tesla and GM each reached the unit limit in 2018 and are lobbying for the law to be changed (CNBC, Electrek).
The question closed "No" with a closing date of 1 January 2020.