The steering reacts according to the steering movement on the steering wheel. But I can't judge exactly whether the steering lock is linear to the turning movement.
p.s. It's still quite fast for children, even at the slowest setting. And spare parts like wishbones can usually be found online. Fortunately, nothing has broken yet.

I'm sorry I can't answer this question because my junior drove the car into a wall on the second day and broke off the steering knuckle.