Tuesday 21 March 2017 10:46, UK
Formula 1 returns this weekend with the promise of a more competitive multi-team fight for honours after an intriguing fortnight of winter testing.
"What we've seen from Barcelona is that the margins at the front of the field have shrunk," said Mercedes chief Toto Wolff after his triple champions trailed Ferrari on the pre-season timesheets.
So are one of Mercedes' two chief rivals, Ferrari or Red Bull, on course to dethrone the reigning champions in 2017? And which of F1's 10 teams will make the biggest improvement over 2016?
Have your say on what the final Constructors' Championship table will look like come the end of the Abu Dhabi GP in November! Use the up and down vote buttons next to each team on the poll below to help shape the vote.
Watch the Australian GP, the first race of the 2017 Formula 1 season, live only on Sky Sports F1 this weekend and in incredible Ultra HD for the first time! The race begins at 6am on Sunday. Check out all the ways to watch F1 with Sky Sports - including a NOW TV day pass for £6.99!
