Hello Guys, I finally got around to test the save file. First up you will need the Season Pass with all DLC installed, otherwise the save is unreadable
I was able to unlock the following trophies with this save:
"Reputation Pays" (Earn 500.000 RP) just replay any event in career
"Fresh out of School!", "Halfway there!" and "Rising Star!" Just finish the first, fourth and last Loeb event respectively
"In Loeb's Shoes" and "Sebastien, the legend" Just win any Loeb Experience event. I'd suggest you do the first trophy on a separate save otherwise they will pop simultaneously
The other trophies like finish a Rally on Podium, finish 1st on a Special Stage, win a Sector Battle, Drift Event etc etc can and should be done with a separate save too to make your trophies look legit. Since you can rent cars, you can do these events relatively early.
The 4-Day Rally Wins can all be done in quick mode