Just a few comments.
First, unless you are selling the car for more than you bought it, you are not making any profit. If you sell the car for more than you owe, then you have equity, but you still lost money, as is the case usually with all autos.
Second, what will you replace the vehicle with? What is the replacement cost? How much will the TTL cost you? Unless you trade in the current, you will pay taxes on 100% of new purchase. The combination of what you lost on the current plus new TTL and depreciation may be quite an actual loss.
Third, I wouldn't buy or sell a vehicle solely due to what it is doing to FICO. I would determine if you can afford the vehicle, save money while making payments, debt to income, etc. If you can't afford it, then definitely sell it and buy a reasonably priced pre-owned and concentrate using the difference to pay debt, save money/emergency funds and preparing for future puchases on a cash basis.
Good luck whatever you do 