There's a feature on Wii U to do a U turn by releasing accelerate during a drift, I assume they haven't changed it.
I see, thanks.
I seem to recall hearing that there's the U-turn option in battle mode only.
edit: Metro's review mentions it: http://metro.co.uk/2017/04/20/mario-...t-dor-6586488/
I managed to find a tutorial video of this in action. It's better than nothing I guess but not the same since you have to build up speed and a drift first.
I wonder why they took it out? The one thing that always bothered me about the battle mode is that the karts have such bad turning angles, they control awkwardly at slow speeds when you're constantly trying to turn yourself around.
Oh well, i'm sure I can learn to get used to it.