I don't think it exists
Ha ha!! Let me know if you find it. I don't think it exists though. I have also found our scoot topping out right around the mid-20's. It seems like I had heard people saying it could do at least 30. Maybe the flat land guys are getting 30 at sea level elevation? Or maybe (more likely) they just kind of over-hyped the capability.
I still love the sled though. My kid is learning things on it that he definitely wouldn't have been able to learn without it.