Crossworlds has more buzz I believe than any previous Sonic racing game largely due to the crossovers and more traditional structure than Mario Kart World.
I think Kirby Air Riders could get ahead of it for a time, but I think Sonic Racing will outsell it in the long run due to inevitable deep discounts (but not counting its potential inclusion in PS Plus Extra, PS Plus Essential, Game Pass, etc.)
It'll be close. I feel like they have similar ceilings of around 5-6 million units. I don't see either cracking 10 million units. Sonic and Kirby have never sold that high, and I don't see that starting now (though perhaps Forgotten Land will crack 10 million in the long run since it now has a Switch 2 Edition).
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 122 million (was 105 million, then 115 million) Xbox Series X/S: 38 million (was 60 million, then 67 million, then 57 million. then 48 million. then 40 million)
Switch 2: 120 million (was 116 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima
