Davids-Coco said:
Keep in mind that if you trade it in, you don't pay taxes on it. But if you sell it yourself, you will have to pay taxes. That is something to consider, especially if it makes a difference on how much you end up putting toward the car.
I would at least take it to the dealership and find out how much they would give you for it before putting out an ad. And sometimes, the difference is worth not having to hassle with selling it.
Very good point! On a $6,000 trade in at 8% tax rate, you'd save $480 buy trading it in.
Also good to remember that in the KBB the trade in value is different than average retail. No dealership is going to give you average retail for your car unless they tack it on to the retail price of the auto you're buying.
My rule of thumb when car buying from a dealership

these are in no particular order)
1.Get a very good idea through KBB, etc what the trade in value of your car is.
2.Find out through internet sites what the invoice amount is on the car you want to buy (if buying new), if buying a used car find out what average retail is on that car. Print it out so you have the $$ amounts for add-ons
3.Find the car you want at a dealership-offer to pay $250-$1000 over invoice. this will depend on the make of car. Cars that are in high demand will very rarely be sold for $250 over invoice. If they have 20 of a particular model of car on the lot they'll go closer to the $250 mark.
4. Buy the last day of the month - they have to get those cars off the lot or pay another months fee to the manufacturer.
5. If the pressure gets to be too much or you're the least bit uncomfortable - WALK AWAY! You can always come back later to talk about it. Don't let them pressure you, ever! You're the customer - make them work for their $$.
6.Eat before you go. These things can take hours!
Good luck!!