Formula 1's rookie class of 2015 garnered much attention before the start of the season, and Felipe Nasr, Carlos Sainz Jr and Max Verstappen are proving star pupils just two rounds in to the new campaign.
Such is the nature of top-level motorsport, though, there are already plenty of potential graduates waiting in the wings, and several of those are on the books of the leading F1 teams.
Roberto Merhi has been omitted from this list because he has already made the step into F1 as one of Manor's drivers, dovetailing it with his Formula Renault 3.5 title bid.