1st Test in JereZ

Formula One testing got under way last week with eight of the teams putting their 2015 challengers through their paces at Jerez.

Eight doesn't sound like many, but the grid is now down to just nine confirmed entrants—only Force India were missing. Manor (formerly Marussia) may join the party to make it 10, but their future remains very much uncertain.

Ferrari stole the headlines with an impressive best time of one minute, 20.841, but Mercedes were the kings of endurance. The W06 covered a staggering 2,248 kilometres, almost 600 more than anyone else.

One of them takes the top spot in the first B/R team rankings of 2015—but which one?

Note on Power Rankings

F1 power rankings ignore the points table (when one exists) and instead present a snapshot of where each team currently stands in relation to its competitors based on reliability, qualifying and race pace.

During testing, we look at apparent speed and reliability, and the rankings are created based on where each team would finish if there was a race immediately after the test. Teams less likely to manage the distance are, of course, ranked lower.