Nascar Ted Kravitz ranks the F1 teams' chances from worst to best after this year's testing.

[Lupin]

"We get to the first start for this year, and maybe they've unlocked this untapped potential we've been talking about, then it's all good. But if they don't, then what? At what stage do they give up on this concept, and say: 'We're going to start from scratch for 2024'? Otherwise this spiral continues.

"This is a big year for [technical director] Mike Elliott and his design group to rebuild confidence."