Sorry, I'm trying to stop laughing right now. Seriously? Ten grand, and a Tesla and a Hellcat?
My gods, that is way. way too funny.
Do you understand that you might be able to get a lower-end new everyday vehicle for that much? Even then, that depends on your standards. You might pay at least fifty grand for a Tesla, maybe sixty or so for a Hellcat. And, still, those are kind of lower-end models.
Me? Well, the gun Hellcat isn't really my style, but I'd get a full stock of leather working supplies for about $6,000, and money to buy a couple nice weapons (Peacemaker, seven shot Spencer repeater rifle, and single shot Sharps rifle) from an unauthorized individual (yes, you can legally do that as a minor). I doubt I could buy all that (with the guns being working originals) for $10,000, but I could always lop a few tools off op the leather supplies.
Really, though? Sorry, kid, but the world's changing. You're going to need a lot more than that for those two cars. I mean, you can probably get a new Kia or something for twenty to forty thousand. Why don't you up your limits a little?