stiller, use edmunds and the like for the invoice price (check a few sites,make sure they're all the same, if not take the lowest.) most of the other fiugures i you READ the car buying tips site, they tell you how to figure them out. i'd do a spreadsheet for you but my pc won't do it because my excel expried and i never bothered paying to have all the msoffice crap installed in their full form.nyway, they have everything spelled out for you and how to find the amounts you should be subtracting off.the ONLY one you can't find by just reading their website is the mfr to dealer incentives that are hidden to the average customer. edmund's forums sometimes have the info leaked on them... or who was it that mentioned about $1200 in mfr to dealer incentives? plug that number into the spreadsheet for the incentives line. heck, i evenhad one dealership tell me about another $400 i didn't account for in my spreadhsheet. guess what? that dealership couldn't find the car i wanted and i guess just wanted to make sure i was milking my plan for every penny when it came to other dealerships!