I was run down by a car…what should I do? Call the cops?

So I was coming home from work on a back road and this car that was way behind me suddenly sped up. So to not make him mad I sped up to. Now im in a 2000 honda civic and he was in a boxy looking mustang I think. I hit the gas hoping he wouldnt catch up because he was really far back ya know? But before I knew it my car and the ground beneath me was shaking and rumbling. I looked down in shock as I was approaching close to 100mph. At this point Im scared out of my mind. Hes right on my tail and I heard a pop in my engine compartment and I cant pull over because its a steep drop down in the ditch. My car stalls and the mustang slingshots around me nearly hitting my car and jets off. So now Im without a car having mother take me to work. And Im scared to go down that particular road ever again. So I dont know if I should call the authorities or if theres anything they can even do. So some advice would be greatly appreciated.

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