Good stuff, can't rate it 5 since it's still work in progress with Helmets and Numbers on cars, but it's defo enough for Career mode enthusiasts like me.
Just to throw suggestions out since this helps make driver changes optional; Gasly to STR (option to replace Sainz or Kyvat), Magnussen to McLaren (replace Alonso), Kyvat to Renault (replace Magnussen), Wehrlein to Mercedes (replace Rosberg), Bottas to Ferrari (replace Kimi), Rosberg to Williams (replace Bottas). For Season 2 and beyond these suggestions.