Because this car is for business use, the $1438 I pay in interest on the auto loan is a tax write off, the $4437 in taxes, licensing, and registration I paid upfront is a write off, and I can I have only traded in another tesla so my experience isn't very broad but I do know that they employ subcontractors to inspect the car being traded in, they more than likely will not beef up an offer they've made for your car. as for how the actual transaction works, again I traded a tesla in, I gave them my old tesla and they gave me my new one. (Not the mention the pollution it emits). As a bonus, the lease term of three 3 years, as a Tesla fan, is perfect timing. The affordable Tesla Model 3 will be coming out when my lease is up. 🙂 I’ve been dreaming of driving an EV for so long! I’m just so happy with the car and my decision to finally take the plunge.