Vasseur: Ferrari must investigate unusual Miami GP 'inconsistency'

Ferrari boss Frederic Vasseur says the team must understand a confusing Formula 1 Miami Grand Prix in which their drivers experienced wildly different fortunes.

Starting third and seventh in Florida, Ferrari actually went backwards in the race as Carlos Sainz fell two places to fifth at the flag as Charles Leclerc endured a quiet race and was seventh, losing out late on to Lewis Hamilton.

Vasseur highlighted multiple "inconsistencies" in their race - including how each driver appeared to prefer different tyre compounds.

Vasseur: Ferrari must focus on problems

"It was a tough weekend and a tough race because the pace was decent [in Qualifying] but we were not able to put everyone together," he explained to media, including RacingNews365.com post-race.

"[The race] was quite similar, the first stint went pretty well for Carlos, he lost a couple of seconds in the first-third [of the race] and then 25 seconds in the last two-thirds.

"We were far too inconsistent from one car to the other and from one lap to the other.

"At some stages, we were okay-ish. In the first stint with Mediums for Carlos, we lost five seconds in 18 laps and this stage of the race was okay for us, and for Charles it was the opposite.

"He was in good shape at some stages of the second stint as he was struggling much more in the first part of the race.

"We really need to focus attention on this because that is key for us.

"For Charles, we had much more performance on the Hards, and with Carlos, much more performance on the Medium - and even with the same tyres from one lap to the other, we are a bit inconsistent."