Question: What is the rebranded name of the racing series now that was won in 2016 by the Prema Powerteam?

Context paragraphs:
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.  It was the final season run under the "GP2 Series" name, with the championship being rebranded as the FIA Formula 2 Championship from 2017.

Michael Patrizi: Michael Patrizi (born 4 May 1984 in Kalgoorlie, Western Australia) is best known as a professional race driver.  Starting off in karts in his native Western Australia, he moved to Formula Ford in 2004, then to Formula BMW in Asia 2005, then UK in 2006.  In 2007 he joined the competitive ranks for the Formula Three Euroseries racing for the Prema Powerteam.  Since 2008 Patrizi has returned home to compete in V8 Supercars and presently competes for Queensland-based team Tekno Autosports.

Ralf Aron: Ralf Aron (born 21 March 1998) is a Estonian racing driver, who competed in the Italian F4 Championship, ADAC Formula 4 and European Formula 3 championships for Prema Powerteam and Hitech GP.

Roberto Merhi: Roberto Merhi Muntan (born 22 March 1991) is a Spanish racing driver who, in 2015, drove in Formula One for the Manor Marussia F1 Team as well as the Formula Renault 3.5 Series for Pons Racing.  Merhi is also a part of the revitalized Mercedes-Benz Junior Team, together with Christian Vietoris and Robert Wickens.  In 2011, Merhi won the Formula 3 Euro Series championship, while driving for Prema Powerteam.

Marcus Armstrong: Marcus Armstrong (born 29 July 2000), is a New Zealand motor racing driver currently competing in the ADAC Formula 4 and the Italian F4 Championship driving for Prema Powerteam.

2014 FIA Formula 3 European Championship: The 2014 FIA Formula 3 European Championship was a multi-event motor racing championship for single-seat open wheel formula racing cars that held across Europe.  The championship featured drivers competing in two-litre Formula Three racing cars built by Italian constructor Dallara which conformed to the technical regulations, or formula, for the championship.  It was the third edition of the FIA Formula 3 European Championship.  Raffaele Marciello was the reigning drivers' champion, but he did not defend his title as he stepped up to the GP2 Series.  His team, Prema Powerteam represented in the Teams' championship by Esteban Ocon and Antonio Fuoco, defended their Teams' title.

Riccardo Moscatelli: Riccardo Moscatelli (1971 in Rome – September 1999) was an Italian race car driver.  His career began in 1988 when he took up rallying.  Then for the next four years he raced in Italian sports prototypes.  In 1993 he raced in Italian Formula Ford and finished 2nd.  He then left racing for two years and returned in 1996 in Italian Formula 3.  The year after he shared Formula 3 championships in Germany and Italy.  He finished in the Italian championship a very low position of 22nd with the Olympia team.  He then raced in the 1998 Nissan World Series.  He then made a big step into Italian F3000 in 1999 with the Prema Powerteam.

Juan Manuel Correa: Juan Manuel Correa (born 9 August 1999) is an Ecuadorian-American racing driver who competes with Prema Powerteam in the Italian F4 and ADAC Formula 4 championships.

Prema Powerteam: Prema Powerteam (competing as Prema Racing in the FIA Formula 2 Championship) is a motorsport team from Italy.  It mainly operates in the FIA Formula 3 European Championship as well as various junior championships.  The team was founded in 1984.  Also this team was a part of Toyota Driver Programme.  Currently the team has strong ties with Mercedes and Ferrari, running many of the current Ferrari Driver Academy drivers.  Its most recent success is winning the GP2 Drivers' title with Pierre Gasly and Teams' championship.

Guanyu Zhou: Guanyu Zhou, also known as Zhou Guan Yu (周冠宇 born 30 May 1999) is a Chinese racing driver, who competed in the Italian F4 Championship and ADAC Formula 4 Championships for Prema Powerteam and the European Formula 3 Championship with Motopark in 2016 and Prema in 2017.  He is a member of the Ferrari Driver Academy.

Supporting paragraphs: Prema Powerteam 2016 GP2 Series
Answer: FIA Formula 2 Championship