I am looking in the 18,000 dollar range. I want a car with a sunroof. The VW Jetta is listed at 21- has good resale value. How much do you think I can knock down that price?

The honda is about 19,500, with good resale value. How much do you think I can get out the door for the Civic EX model?

Finally, the Mazda is in the 19,000 range without a very good resale value. How much do you think I can knock the price down off of this car?

Any help would be great. Thank you.