[Jb54]

Hi! Do your homework and know what your 2017 is worth! I don't recommend 84 months financing, because
(1) You won't be able to negotiate the price of the 2020 with too much success. Already giving you a break, because they're not making anything off the financing.
(2) You'll be upside down on your loan in short time as the balance remaining on your 2017 will be added to your new loan and depreciation on top of that!
You can do all negotiation over the phone and come to an agreement. I recommend looking at a lot of pictures from your dealership.
Both you and the dealership are relying on each other's word about vehicle condition, without actually seeing them in person.
If you reach an agreement, say they bring the car to you. You absolutely have the right, to refuse the deal if there is something you don"t like about the car. But don't expect them to be happy about it. Get all of your questions answered and details worked out BEFORE delivery. Also get the financing worked out BEFORE taking delivery.
When it comes to delivery, I suppose that is between you and the dealership. They may charge you extra to have it delivered on a trailer. If someone drives it out, I doubt any extra charge. Can't expect them to trailer it for free!
Hiring a broker: You are essentially hiring this person to
(1) Look the 2020 Camaro over for you and determine if it is what you want.
(2) Evaluate it's condition and report to you.
(3) Get the best out the door price for you.
Since it is out of state sale, you'll have to pay tax and license up front. Difference between your state's tax rate and the seller's state tax rate could be higher or lower. If your state is lower , you would be issued a refund from the DMV when you license the car.
Brokers do get a fee and that is also negotiable with them.
The current promotion of 0 percent for 84 months isn't a scam, it is a real promotion. I recommend you do your own dealing and negotiating and use your trade as the down payment and any additional you can put down. Try financing for a less amount of time. Loan rates are cheap right now with good credit.
Good luck to you!!