I would like to know if the following is a good deal on a 2010 Mazda 3 i Touring with the moonroof/Bose package, fog lights, cargo net, and compass/autodim mirrors. I got an offer of $16,200 out the door (S-plan + clunker trade in + $500 discount) Sticker price was $21,060. I also got 3.9 %...