This was not at all that difficult, even if you don't usually drive in Manual, or even if you are new to F1, like i am.
The way i did this was just at my favorite track, Britain Short, as Max Verstappen, by toggling to "Solo" from the home screen with
, then selecting "Grand Prix".
Choose F1 2020 (or any other series) --> Favorite Team --> Favorite Driver.
You can then select your track. The next page will allow you to select your distance, and assists. I personally did 3 laps with AI on 0.
to "Assists", and change your Gesrbox to "Manual". You can also select "Maunal with Suggestion Gears", which just tells you which gear to be in around the corners and the straights.
Either Manual Modes will unlock this achievement. I did manual with gears to be able to give this guide as much information as i possibly could, so i know this also works.
I did NOT do a Qualifying, and i started in 4th. With AI's set to 0, it was fairly simple to move past.
is upgear, and
is downgear. Don't forget you need to be in R to be able to reverse:
to move forward.
You can also just go around in 4th or 5th if you absolutely need to.
Once you finish in 1st, the treasure unlocks