Since you cannot buy it directly anymore, you have three main options:
: This was the final major stability and "puresport" update for the title. Where to Find It Download F1 2018 Headline Edition v1.16 OnLine
The best to make the 2018 version look modern. Current Steam Key prices from verified sellers. Since you cannot buy it directly anymore, you
: Look for "Headline Edition" global keys on reputable third-party resellers (e.g., CDKeys or Humble Bundle if they have old stock). Download F1 2018 Headline Edition v1.16 OnLine