how that price compares to the one you expect to pay or are negotiating to pay. This may help you get a better deal. The dealer markup will be greater for luxury cars than for economy cars.
Watch out for unnecessary add-ons. Some buyers like stylistic add-ons like wood-paneled interiors, pin striping, or gold lettering. But other extras, such as undercoating or fabric protection, are unnecessary and only add to your costs.