Yes. You can play with the wheel, or with just the regualr wii remote, the nunchucks, or a gamecube controller.
No. The Wii Wheel is simply a plastic wheel shape to insert the Wii Remote into. You can play without the Wii Wheel if you wish.
This is an opinion. The Wii wheel is more accurate on how much you turn, but is is very sensitive. I use the wii wheel.
Yes you need the Mario Kart Wii disk to play Wi-Fi on Mario Kart Wii. It is just like playing a normal race but with other people around the world or in your Contanent.
drive with the steering wheel just like a car or use a nunchuk to steer the kart.
No, you have to use a GameCube controller for it.
Yes. There are 2 ways you can just use the wii remote without the wheel and tilt it or you can use a gamecube controller.
There is no Mario Kart 7 demo that you can play on the Nintendo eShop
There is no Mario Kart 7 demo that you can play on the Nintendo eShop
There is no place on the internet to play Mario kart. It is only for the DS or DSi
Play a Mario Kart game that has the track Yoshi Valley in it, or build your own Mario Kart
There Is Not A Demo Version Of Mario Kart, You Just Have To play it yourself
Mario Kart Wii is from Nintendo and not Playstation so no.