It is often said that the Formula 1 field closes up in the second season after a major rule change.
The theory is that bigger teams with more resources are able to exploit new regulations more than others, spreading out the field initially. The law of diminishing returns then allows the smaller squads to close up in subsequent seasons.
That should bode well for 2018, given how close Ferrari got to Mercedes last season, but is it actually true? Autosport decided to look at the second years of major regulations in F1 history to find an answer.