Lol Guillaume

It is just for fun so it sounds like a great idea, lets do it. The only problem with it being GP but measured against the Overall is that there may be a fast GP player who might not have as high level on other modes, resulting in them snapping up a high-ish ranked GP player as well as their partner.
Or a player who was only there for GP and does really well to get in the Top 20 but then grabs one of the top seeds. The solution for this would be to only include those who played the whole CDM, though it would be a shame to not let them take part especially if they could only make it for a short time.
For example if Christian Wild repeats a similar performance as in 2016 (moreso if he reaches Quarters in GP this time narrowly missing out on Semi but drives exceptionally well, he and his partner may be dangerous contenders if his overall rank lands at 13th or 14th etc). There will be two solid drivers there, no guarantees for a win still though. But they will be one of the best chances.
Clark: If it was 1st to 20th, and we used last year's results, guess who you would have had?

On the contrary, I will be happy