Shoot your shot. Whatever you dont don’t send the calculator to dealers. Write out an email with the line items that got you to your payment. Msrp, discount, term, miles, applicable incentives, zip, etc.
How does it compare to brokers in the Marketplace ?
Slippery slope…you don’t want to be overly aggressive where your offer is ignored or delete.
Long thread but worth the read, I think you want to be armed with as much info as possible before losing a deal. If all else fails just hire a broker and pay for shipping.