Very fun! Was wondering if it was normal to avoid all cars if you go in the center line? My guess is yes as you still need to go and get powerups around the road.
You can, its mostly a safe space, but doing so will limit how long you can go and limit your score ^_^ I had intended to put water barrels passing through in. But I felt you were already forced to grab powerups and it could possible cause impossible situations.
Does the game checks if you are and if so makes your score go slower or you meant in theory? Because I just moved out of the lane when powerups popped up and recentered myself after, which still makes for a challenging experience, especially when you go super fast.