WASHINGTON, May 20 (Reuters) - A trade group

representing General Motors ( GM ), Toyota Motor ( TM ),

Volkswagen and nearly all other major automakers on

Monday backed two key portions of new U.S. rules to dramatically

cut vehicle emissions through 2032.

The Alliance for Automotive Innovation said it was filing in

support of the Environmental Protection Agency in including

electric vehicles in fleetwide averaging of emissions and

excluding upstream emissions from compliance calculations.