Now before I begin, I want to make it clear that I love drifting. I think it's a wonderful sport that takes serious car control and a lot of delicate tuning to deliver grip on the limit (yes, shock horror, drifting requires grip)
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I don't think there should be a drifting event in the 'campaign'
Now hear me out here.
I'm a completionist through and through, hell I'm not too far off getting my platinum for GT5 to give you an idea of the scale of my compulsion.
Now if I wasn't into drifting, or was absolutely horrible at it and just couldn't manage to get the rhythm of the sport, I would despise the game and all it stands for, because it would be a massively frustrating experience standing between me and 100 percent completion of the game. (Much like the X1 special event and the B spec career trophy are right now).
Now if we want people to get into drifting, rail roading them into it isn't the way to go, it's as simple as that.
So, I think there should be more regular drifting seasonals (and well, more regular seasonals to begin with) instead, maybe make that our version of D1 or whatever, have it give rewards that aren't mandatory to the completion of the game, or depending on how GT6 is designed, maybe even drift specific rewards? I dunno, this isn't a speculation thread.
Anyway, that's my point of view, as if anyone cared or read that entire thing XD
In short - Speaking objectively, I think it would be unfair to punish people who can't/don't want to drift by putting a tournament that is aimed at an audience that is niche compared to the games target audience, into the game.