List of Mario Kart 7 pre-release and unused content
These are beta elements for Mario Kart 7.
Beta Elements
The E3 2010 demo, Rock Rock Mountain and Mario Circuit didn't have a ramp where the glider could be activated. Also there were no ramps because Nintendo didn't confirm that tricks would appear in the game. The demo also showed all the items from Mario Kart Wii (excluding the Thunder Cloud, the Mega Mushroom and the Pow Block) and the Spiny Shell with wings. In the earlier trailers the boo's in the painting don't appear in Luigi's Mansion.
Scrapped Parts
A kart frame named Bullet Duck was mentioned on several websites, but was not seen in the game. Also a kart called Banana Buggy was mentioned, which is likely a early name for the Bolt Buggy, because this kart is called Banana Buggy in many languages other than English.[1]