http://www.gm.com/investors/sales/us-sales-production.htmlBolt EV had its best month ever with 2,505 retail deliveries and 2,632 total deliveries.
Best month ever for Chevrolet electrified vehicles (Bolt EV and Volt), with 3,929 retail deliveries.
Volt sales are still low, 1453.
Note difference between retail and total deliveries on those texts. Total plug in vehicle sales were 4085. Most of the fleet vehicle sales seem to be the Bolt EV (again, likely Maven/Lyft and maybe Uber).