Would love advice on how to move forward in this situation

I will make it super condensed just to be easy to read, but this has been a very hard past few months. My mom passed away in July, and she was my only active family member. I hadn’t seen any of her extended family in 15-20 years.

Long story short, after she passed, it is just now me, alone, living in the family home we had for 25 years. However, my mom also left me her only vehicle she owned. Written in her will, very clearly was always going to me. Well her siblings decided otherwise. Within days of her passing away, her siblings began driving the car almost daily. They took whatever they wanted from every inch of the car. Any kind of memories my mom kept in the car, snacks or anything that was inside the middle arm rest honestly, anything that was left in the car from my mom, is now gone.

I finally got the nerve after weeks of being broken hearted over this emptying of the car, and told my mom’s family how I felt. My aunts said “we didn’t even take much just, this, that, etc” but there is literally nothing left in the car. A thing of tissues is all that’s in the arm rest. It used to be full to the top with memories from trips with my mom. You could say it was accidental, or done out of their own mourning, but every time I see the same people who cleaned out the car, they now tell me to sell the car for profit. And I will tell them no, I wouldn’t do that in a million years, and they then tell me to sell it, the next time I see them. This has gone on for weeks now since my mom passed in July.

This is the only vehicle I have access to, and would’ve deeply loved to sit in it, and even drive it with all my moms things and memories in it right after she passed but it is not my mom’s car anymore, and was completely emptied almost immediately after she passed. All of her memories, and everything is gone. But I still have to use it eventually. Does anyone have any advice on how to make the car feel more back how it used to be? It was our household car for 10+ years. So I’d love to maybe make it feel more comfortable again and not empty? Also yes the people who cleaned out the car are strangers to me, and my mom’s extended family. I don’t know them, and they’ve made it clear they don’t like me. I’m a female in my 20s for context.

Thanks so much for any advice. This has been incredibly hard to go through alone.