+ Estimated Trophy Difficulty: 8/10 + Trophy Breakdown: 1-3-5-41 + Offline: 38 - 4 - 2 + Online: 3 - 1 - 1 + Approximate Time To Platinum: 100+ hours + Playthroughs Needed: 7 seasons in career + Clean up & Online. + Missable Trophies: A lot of the career trophies could be missable but are pretty hard to miss. Hot property on the other hand is quite easy to miss. + Glitched Trophies: There are several trophies people have reported as glitched (See Below).
Step 1 - Career Mode:
Glitched Trophies: There are quite a few trophies reported to be glitchy. "Practice makes perfect", "Made Perfect", "Impress the boss" & "Magic Number" are some of them. The good news about these is that they aren't permanently glitched. The bad news is there is no known way to guarantee getting them. So you will just have to keep trying. I will say that I didn't have any problems with any trophy unlocking and most people I think are the same.
Note: When you start up the game make sure you select a 7 season career, if you didn't then go to My F1 in the menu and start a new career for 7 seasons. Put the difficulty (or at least the ai speed to lowest) and start your career. You'll want to be going for Schuperb from the start to save time at the end of your career. So go for a lot of pole positions and convert them to race wins.
Season 1: In Season 1, you'll be at a small team but you can still win everything on the lower difficulties. In this season you should be trying to get pole and win pretty much every race. But if not, then at least scoring points and finishing ahead of your team mate should be your aim. After your first race you will get "Rookie Driver", you should also get "Face the press" in your first race weekend. You should get "Seeking performance" in a practice session in one of the first few races. If you are winning all the races then "The magic number" will pop after your third race.
Later in the season contract offers will start to come in. Once you receive an offer, before accepting it win the next race for "Attracting attention". If you have been winning all the races or nearly all then you should be leading both championships and get "The big one". "Hot property" probably won't pop because you should be leading the championships. Check the guide to see if you could get it this season if not it will have to wait until at least next season.
When you get the interview about your championship rival and choose the highest placed one you will get "Strength of character". Once you beat him in the championship you should get an offer to drive for his team. If you accept it you won't get "Team leader" until later but it doesn't really matter.
At the end of the season a large number of trophies should pop. "Seasoned", "Impress the boss", "Limelight", "Built to succeed", "Crushing Victory", "Consistency is the key" & "Team Leader" (If you accepted a contract to be number 1 driver").
Season 2: Season 2 should really just be more Pole positions converted to wins, A 2nd world championship for "Double World Champion" and "Hot property" if you missed it season 1 and can get it this time round. If you got to a top team you could also get "One-Two".
Season 3: Providing you are a top team, which you probably will be, you could make this your expert season to get "World Champion - Expert". Alternatively this season you could finish off "Schuperb" (Though you may get this anyway doing expert) and win a 3rd Drivers Championship for "Triple World Champion". This would pop when if you went for Expert anyway. You could also go for "Hot property" and "One-Two" if you don't have them at this point.
Season 4: If you did expert last season this should just be finishing off anything career specific you have left and then getting to the end as quickly as possible (See description for "Commitment is the key"). If you didn't do expert last season then you should go for it this season, the only real requirement is that you are in a top team.
Season 5-7: You should have everything finished off by this point but if not do it now apart from "Commitment is the key". Check the description for that trophy then finish off your final seasons to get it to pop.
Step 2 - Grand Prix/Time Trial Mode:
Obviously this step isn't done. At the moment I just listed all the trophies involved so I know and I'll write them up properly soon.
This step is to clear up the rest of the offline trophies. A lot of these trophies can be achieved in Career mode and you will probably get a lot of them naturally while playing through your 7 seasons. All of these however can be achieved in Grand Prix mode or Time Trial mode so you don't have to worry about missing them.
There is only one trophy specific to Time Trial mode. "I ain't afraid of no ghost", all you have to do to get it is set a lap time on a track. "Speed Demon" is also easy to get In Time Trial mode though If you don't have it by this point.
A couple of the trophies are for winning In a particular car at a particular track. Mercedes In Germany and Ferrari at Monza. That will get you "Silver Arrow" & "Tifosi" Also you'll have to get a pole and victory at Monaco for "Unforgettable".
You'll also have to win a 20% distance race in Heavy Rain for "Rain meister" and win from last place on the grid for "Against all odds".
There are a few trophies to do with racing or winning races using certain settings. Completing a race using cockpit cam for "Well protected", "It's a set-up" for winning a race with a custom set-up, "Semi-auto" for completing a race using manual gears and "True racer" for winning a race with no driver aids.
Obviously you can combine a lot of these trophies to minimize amount of races required. For example winning in Monza in a Ferrari, with a custom set-up and driver aids off would get you 4 trophies. So try to group multiple trophies to each race.
You will also have to do a long race weekend set a time in each of the three practice sessions for "Practice makes perfect" and if those times are the fastest of each session you will get "Made perfect". Setting the best time in practice, getting the pole and then going onto win will get you "Full house".
The others are a lot simpler and should have come just playing. If they haven't though check the guide and get them. The rest of the offline trophies that should be wrapped up by the end of this step are. "Clean license", "2nd Chance", "Pole Position", "Podium Finish" & "Top Step".
Step 3 - Online Mode:
For this step you are going to have to rank up all the way to level 50 online to get "Perfect 10", "2 and 5" and "Nifty 50". There are also a couple other online trophies to get. Winning a Grand Prix event will get you "Taking it online" and finishing a race without crashing will get you "A true gent".
[PST Would Like To Thank Jonnie for this Road Map]