Question: What is the rebranded name of the racing series now that was won in 2016 by the Prema Powerteam?
Sentence (from "2016 GP2 Series"): The 2016 GP2 Series season was the twelfth season of the GP2 Series, a motor racing feeder series that was run in support of the 2016 FIA Formula One World Championship.
Relevant evidence: No