I was thinking it would be pretty kool to have Trikes, as in harley style bikes or "freeways" as three wheelers, u know so u can take 2 people in the back seat, and i dont mean a three wheelers like the quadbike.
Also, those motorized gliders? Almost like a Go-kart attached to a hang-glider?
Actually, a hang glider it self would be fun.
Those one man underwater transport things... basically an enclosed propellor, with handles, that pulls you along - no-idea what they are called in real life, i see them all the time in movies so they must be real!
OR some sort of mini sub... whatever.
If not that, then at least a scuba set. Exploring underwater caves (oysters?), and imagine having a save point/safehouse that only has an entrance via underwater, that leads to a cave?
(this one is just for fun) A monocycle! having to use one of the sticks to keep balance, and with this new bike skill thing it would become easier to stay balanced... OR one of those 3 wheeled kids toy bikes... (i know thats stretching it a bit)
Something i WISHED they fixed for VC was being able to/automatically raise/lower the convertable top in cars when it rains!! Nothing worse than driving around in a soft top in the rain...
An elevated cable car service between cities?
Another thing i wised they changed for VC (but didnt) was the ability to go from your save point (inside your safe house) to your garage, without having to go outside. Every single person i know that has a garage, has a door in their house that leads to the garage. Like when it rains, you dont wanna go outside to get into the garage!
Thats all i can think of right now.
Going to have a few more tokes and think up some more shit.