Driven against tyres of a parked car ….

Hey guys, I hope you’re all fine. Was traveling with my mom early and looking for a house that was a bit difficult to find when we then realized that it was about a few meters further behind, she was driving backwards and we didn’t exactly watch if something was behind us, strangely we both didn’t realize that there was a car on the back right .. Probably too much concentrated .. well, bad luck had stopped. 20 years accident-free and of all things in such a banal constellation it happens. It was an SUV BMW if I am not mistaken and it was just parked to the right and the tires turned left- we hit the left front tire with the right side of our rear, also gave a pretty bang. As we get out we just noticed that we have some black color of the tires and the tires on the side was just a little “ground off”. My question is now, we have to deal with a very big damage like the axle or minor damage like tires and crossbars? I’m aware that it can’t be said like that but about that. Have also taken some pictures, would they help?