16k is a very low price, if they don't stick to that or go over 17.5K walk away. Don't know your credit but I wouldn't let them bait and switch me, 16K is again very low.
Also make sure they aren't charging you crazy for GAP or other things. Look at the final montly payments and multiply it out and make your decision from there. Dealers love to sell cars for cheap and get you on other aspects.
At 16k and a horrible 6% interest with 3K trade in your payment should be around $267.00 / 60 months.
Also...If you want GAP make sure to talk to your insurance company first. I know on one of my cars it was $20 a year through insurance, but I got suckered into paying $10 a month from the dealership workup.
2004 GTO PBM A4--408 Stroker--507/491 RW N/A
2011 Corvette -Torch Red - A6-Cam, Headers, Exhaust---419/415 RW N/A
2013 Ford Focus -Metallic Grey