http://pitstop.gran-turismo.com/en/article/1129
As someone who is *slightly* above mediocre at drifting (i.e. i can usually achieve a gold in the first 3-5 tries, i really dont care about leader boards), i found this to be one of the most annoying drift challenges yet. The line is not intuitive through the second corner at all, and requires you to go across the line completely sideways. Not to mention wag style drifting past the start line doesnt register any points at all, until you are into the first corner entry. Its nothing at all like the 2014 D1GP at Fuji. Its a joke, and its even worse than "normal" drift events in GT6 thus far.
Sorry, I have to disagree completely. I just went back and redid this seasonal to test it again....and I have to say, I'm actually pleasantly surprised at how accurate the scoring system works for this challenge.
For this challenge, to score good points, you need to follow the 2014 Fuji D1GP line as absolutely close as possible.
I'm not sure what "wag style drifting", but to me it sounds like something that would result in a 0 at almost any drift comp.
If you watch the IRL vid I posted above, you'll notice that the drivers are initiating around a cluster of neon green/yellow cones, place on the right hand side of the track (also with some spraypaint on the track). The yellow "sector start" icons in the GT seasonal are located at nearly the exact same distance from the left hander.
Getting a clean launch from the start actually matters in this challenge. You'll want to be hitting about 70mph passing under the Audi sign, and the initiating between 90-100mph.
Follow the same line as the real life comp. Start on the left side of the track as you pass under the Audi banner. As you approach the "sector start" icons, weight transfer from left to right. You should transition right as you cross the icons.
Start dragging the e-brake to slide the rear of the car along the rumble strip on the right hand side of the track. For me, the points counter wouldn't start countingn until the weight transfer was complete, and the rear of the car was stepped out to the right. Try not to be on the rumble strip too much, as this reduces points, and upsets the ballance of the car.
Now comes the key to getting a good score. You want to be approaching the left hander with that "Goldie Locks angle"...ie not too much, not too little. I'd say between 45' to 60' is what you're looking for (IRL they can go for more angle and still score well, but the GT system doesn't score monster entry angle very well).
The key to getting a good score is to have the car lined up in a way that allows you to go full throttle before you pass the inner clipping point at the apex. If you're sliding past the apex still on the brake, or feathering the throttle, you probably won't score well.
From the CP, your next aim is the transition, which should happen on the right side of the track, almost directly under the Goodyear sign. As you pass the CP, take as direct a line as possible from the apex to the spot under the sign. Maintaining consistent speed, line, and angle (result of being smooth with your inputs) through here is what racks up the points. In the few test runs I did, I was hitting about 2500 points as I reached the Goodyear sign.
Transition on the right side of the track as you pass under the Goodyear sign. Try to make this transition as smooth and controlled as possible. You want to use this transition to gain as much grip as possible, which will allow you to pick up as much speed as possible as you enter the 100R corner.
I use an up shift from 5th to 6th in conjunction with the right-to-left weight transfer to help kick the back end out to the left entering the 100R.
IRL, the line through the 100R is actually a little ambiguous, where as GT's is more precise. To score the most points, keep the nose of the car about 1/2 a car width off the white line on the inside of the corner. You should be standing on full throttle through here, only making minor corrections to stay on line if necessary.
I posted the tune for my ER34 above. Like I said, I use the stock transmission.
I leave the line in 2nd. I start my initial weight transfer in 4th, and shift up to 5th as the weight goes from left to right. Back down to 4th as I drag the e-brake. Stand on the gas and e-brake at the same time, then release the e-brake when the car is lined up properly. Being at full throttle when you release the e-brake is a DS3 el-cheapo way to mimic a clutch kick (makes sure your turbo is spooled as well). Shift up from 4th to 5th passing the inner CP on the left, at full throttle. A slight lift and/or gentle "left foot brake" as you approach the transition to set up the weight transfer. Finally, shift up from 5th to 6th as the weight transfers over to the left, and stand on full throttle through 100R to the finish.
Drifting in general -- I have read what I can on the Drift Forum and checked out Shmo, but still struggle. For those of you who enjoy and are good at it I'm glad. I will keep giving it a try once in a while and perhaps eventually get the idea.
PM me if you have some questions, or would like to learn more. I'm in no way saying I'm good at teaching drifting, nor am I an expert...but I do know a thing or two. Maybe even just get you pointed in the right direction 👍
)...so that means my tunes and handling preferences are slightly different than a lot of DS3 users. 
