Jules Bianchi finished as top main series rookie in third for ART Grand Prix, after coming at the head of a four-driver battle for the position.
Sprint wins were taken by Fabio Leimer in Montmeló, Jérôme d'Ambrosio in Monaco, Marcus Ericsson in Valencia, Giacomo Ricci in Mogyoród, Christian Vietoris at Monza and Davide Valsecchi in Abu Dhabi.
As there was a new team-entry-selection process scheduled for 2011, series organisers decided it was not worth a new team joining for a single season, as there would be no guarantee they would be on the grid in 2011.
The Barwa Addax Team had two new drivers for the season, with Giedo van der Garde moving from iSport International and Sergio Pérez leaving Arden International to partner him; Addax drivers in 2009, Romain Grosjean and Davide Valsecchi joined DAMS and iSport respectively, Grosjean's signing being in mid-season rather than at the start of the season.
Other moves saw Pastor Maldonado leaving ART Grand Prix to join Rapax and was partnered by Luiz Razia who had been a race-winner with Scuderia Coloni in 2009.
The end of the International Formula Master series saw three drivers moving into GP2 from that particular series; champion Fabio Leimer joined Ocean Racing Technology from Jenzer Motorsport, while JD Motorsport team-mates Vladimir Arabadzhiev and Josef Král joined Scuderia Coloni and Super Nova Racing respectively.
Champion Nico Hülkenberg was signed up by Williams F1 to partner Rubens Barrichello, runner-up Vitaly Petrov swapped the Barwa Addax Team for the Renault F1 team to replace Romain Grosjean, and Kamui Kobayashi joined Sauber after several races replacing Timo Glock at Toyota Racing.
Edoardo Mortara left Arden International for a return to the Formula 3 Euro Series with the crack Signature outfit with whom he had won the Macau Grand Prix with, in 2009.
Diego Nunes returned to Brazil to compete in the Stock Car Brasil series with RC3 Bassani Racing, Javier Villa moved into touring car specification series, competing in the Spanish Mini Championship, while Roldán Rodríguez decided to take a sabbatical from racing after his GP2 Asia campaign.
Super Nova Racing's Josef Král suffered stable fractures to two of his vertebrae in an accident with Rodolfo González in Valencia.
[16] Fabrizio Crestani made his main series début at Spa-Francorchamps replacing compatriot Giacomo Ricci at DPR.
[25] Ho-Pin Tung made his return from injury at Abu Dhabi, replacing Christian Vietoris after he needed surgery for appendicitis.
[11] James Jakes and Federico Leo also their main series débuts in Abu Dhabi, replacing Álvaro Parente at Scuderia Coloni and Edoardo Piscopo at Trident Racing respectively.