Hi Ricky James
I know why result is 0 because in constructor
public Car(int regularPice, int speed, String colour) {
this.regularPrice = regularPrice;
this.colour = colour;
this.speed = speed;
}
this.regularPrice = regularPrice;
You assign this.regularPrice = regularPrice(value of this not value of parameter)
parameter is name regularPice.
I think regularPice not equal regularPrice and you miss 'r' in name of parameter.
You can tool so that create constructor and getter/setter.