Trident Racing has become the latest GP2 team to sign up for the new Auto GP series.
The Italian squad joins GP2 rivals DAMS and Super Nova, both of which confirmed their involvement last month.
Trident plans to run its Auto GP programme alongside its GP2 campaign to "highlight the team's intention to maintain a relevant position along with the other top level teams in the field of international motorsport."
The Coloni Motorsport-run Auto GP, which uses the an updated version of the first-generation A1GP cars, promises substantial prize money despite requiring a relatively small budget from its drivers, and Trident team principal Maurizio Salvadori said that he hoped to use the series to help prepare drivers for GP2.
"I think Coloni is bringing forward a very appealing project," he said. "Our goal is to fight for victory, but also to line up deserving drivers in the Auto GP Series that can eventually grow with us in the GP2 Series."