Create Particle object at collision point between two objects

In the example, the particles are created at the center of the shape that is hit, but not at the place where it is actually hit, for example: as you can see here it is created at the center of itimage
if i were to use the same method as in here it would just create the particle at the center of the wall, inside it. I want the car to have “scrapes” particles AT the hit position of the car itself and the wall, not at the center of it.