GP2 post-season testing is underway in Abu Dhabi, with many teams running their 2017 driver line-ups for the first time. At Prema Powerteam - the defending champions - drivers' champion Pierre Gasly and Antonio Giovanazzi have been replaced by Ferrari Driver Academy pair Charles Leclerc - who won the GP3 title this year - and Antonio Fuoco. The result? A livery change to acknowledge the links to Ferrari.