lol wtf that’s a horrible deal for a civic when you could be driving a jag XE for $240.
You’re approaching from a scientific perspective with rules. There are NO rules only the dealer’s rules and he will change them on you. You can only guess at how much the dealer paid on the car and he will NEVER ever lose money on a deal unless it’s for the owner.
The dealer makes profit based on 1. Sales price. 2. MF markup. 3. Fees. That’s visible. Then there’s holdback from the manufacturer (2% of MSRP from Honda), incentives, and secret volume discount.
Go on NADAguides and edmunds tmv. That should be your HIGHEST price. The dealers provide that information and manipulate the data so that it would be on the high side. According to NADAguides your selling price should be MAX $21,769.
You should also hit up autobytel for incentives.
http://www.nadaguides.com/Cars/2017/Honda/Civic-Coupe/EX-L-CVT/Pricing