Disney Infinity 3.0 Toy Box Games

Of all the characters and vehicles you have, which combo do you think will be the first one that you race with in the Speedway?

The first Disney character I race with will probably be Mickey (not sure which one, though) driving Mickey's car. And the first Star Wars character I race will definitely be Princess Leia! Hopefully with a pod-racer.

The pieces wouldn't have to the flat to have power discs on the base at the same time. It would have have to stackable on the bottom so you could put discs under it.

I am hoping also to see a better spacelike vehicles where you can add planets up in the air or any obstacles that you have to dodge

@InfinityApprentice

I think my choice when racing for the first time will probably be Vanellope. It would be a matter of whether I chose her Sugar Rush kart or the Darkwing Duck cycle (if it's allowed).

So, we know that power discs are allowed in the Speedway game... do we know the limits?
Like, stuff that can fly, but would be reasonable choices, like Aladdin's carpet or Dumbo. Or what about Tantor, Gus, Abu etc, will they be allowed?
Like, what do we know is/isn't allowed?

I imagine all ground vehicles will be allowed for sure, including bikes.
Flying vehicles that have a ground mode will be allowed (eg Lola) - unlikely they will be able to transform just for reasons of fairness.
Flying vehicles like Dumbo would have to have reworked mechanics, but I think still a possibility.
Mounts such as the various horses/elephants etc I think will NOT be in, unless they include a MOUNTS ONLY mode (which would be totally rad!)
Aladdin's carpet is a pack, which I don't think will be possible to enter.

About the flying vehicles, some will be in at least. They said that the bed from Bedknobs and Broomsticks will be available in the racing game!
They could easily do them all I guess... Just let them hover a bit above the ground like podracers and such. Only problematic one that I can think of right now is the recognizer from Tron due to its size.

Is it too early to ask for a mount-racing game in 4.0? ^_^

@InfinityApprentice - you may not even have to wait that long. JV has been coyly implying DLC is on the roadmap is his various interviews. I wouldn't mind betting they will change up the model once the 3.0 cycle is done and make it more of a continuous evolution based on various IP from upcoming movies and TV releases. Essentially an advertising platform people pay for.