I’d guess the CCX could go up to 6.55, and maybe les since as long as you can handle it, there’s enough power under the hood, but that would require really marvelous driver abilities
The 360 may reach .6.55 too, but nothing more really (and that’s already pushing the limit !).

Also since then i made 7.02 with the CCX… and the ferrari is waiting to take this new challenge !