DS3, Skid recovery force On, Max Downforce, Tranny to 261, lower suspension
Job done! Gold on first 3, messed up Nurburgring (so did AI), Gold Monza, still had enough points to leave and finish first.
Just so anyone who hasn't done this event knows, the first time I got gold on 4 events and quit 2 (cote a'zur & suzuka), I placed 2nd overall. The 2nd time I got gold, but if you are unlucky like I was you aren't alone. Not sure what's up the Nur track, the ai spun out on what seemed like every other lap at the chicane. I was cheating on that track so I had large lead and the ai spinning out was just improving it.
I eventually got gold on all the races with a ds3, and best advice for this is to use the driving aids, cheat corners when you can, grind fuji, indy, & suzuka until you can drive them with the fgt with your eyes closed then do the championship event. Driving aids make the fgt handle like a battleship so hairpins are a lot harder but it's better than it driving like it's on wet ice spinning out all the time. I don't know what it's like with a racing wheel, but it is useless with a ds3. I ended up winning with out any changes to the tuning, whatever was default (only because I forgot to redo it when I got my second FGT). I "cheated" on Monza and the little Nur track, you can cut through the chicane at almost full speed which saves a bunch of time on those two making it a lot easier to win. With the aids on, Fuji & Indy Road are manageable if you know the tracks, running 20 laps knowing any mistake means you will probably lose adds a whole level of fun... Cote a'zure is a beast and suzuka is my nemesis track already so it was no big surprise I had trouble with it.
After a couple of tries I got gold on Suzuka but it was a fluke. It was a rain race, the ai started out with racing slicks and ran really slow, then hit the pit around the 3rd or 4th lap which gave me a monster lead. The guy suggesting running the endurance race, is sound advice; However, even after 4+ hours on it twice I still suck at that track. I used the x2010 last and my personal best was like 5 consecutive laps without sliding off the track, spinning out, having to almost stop because I entered the hairpin too fast, etc...
Cote a'zur I wasn't so lucky on... Several several hours of racing that one again and again and again... Best advice for anyone who doesn't have gold on this one, get 1st early and then block the ai as best you canfrom getting around you. I wanted to break my ds3 after one unfortunate race and that was only time I have ever raged out playing GT5. After hours of trying it, I managed to get and hold 1st place through 19 laps. On the 20th lap coming around the curve after the hairpin (before the curve going into the long straight w/ the chicane) the 2nd place ai bumped me, I ended up crashing into the curved part of the barrier before the next curve and got stuck there because the ai cars kept bumping me back into it when I tried to get out as they were going around the next curve. Finished last and had to take a break for a while after that.