I am playing this game on PS4 and whilst playing the splitscreen option. Out of the corner of my eye I noticed a tip or message that stated you could set it to 1 player, if you want to practice solo. I would like to know how it is possible to do this. I can not find any way to turn it off and have not seen this tip again. Any help would be appreciated.
EDIT It definitely states that you can set it to 1 player. I have now worked it out, in the AI vehicle type selection, you can keep scrolling to the right and the last selection is AI off. I was previously only scrolling as far as ALL and AI off is the next selection. This is handy if you want to practice tracks or you can use it for grinding trophies or achievements, as you are guaranteed wins every time.