The VVV video mentioned the modes but what are they? Tried searching but couldn't find anything. I assume it is either a button layout or default difficulty setting?
The modes are sensitivity and responsive input.
Mode 2 is good, mode 1 is very twitchy I found. Try all three and you'll find one you get on better with.
Project cars gamepad support is now very good. Took a long time to get it where it is today. Its better then most gamepad controlled racers and I think it's better then drive club which is actually not a fair comparison as drive club is an arcade game but anyone who is buying project cars for ps4 and played drive club , then this'll give you an idea.
And, all cars in project cars behave different.