It's actually dealers invoice. It means the actual price the dealer pays to the manufacturer for the car. Usually you see MSRP, on a price sheet on the car, this is Manufacturers Suggested Retail Price--the price the manufacturer thinks is fair for you to buy the car at. The goal is to get as close to or under the invoice price when you are buying a new car--thats before tax, license and title (TTL). Hope this helps.
Have to agree with TEG, for a brand new model car in it's first year you usually have to pay more. Depends on demand. For the IS300, MSRP will probably be the going price. If your willing to wait, the price will go down, but it's still a Lexus and I don't think they will ever sell for invoice unless you have some connections or they've had the car on the lot for months.
I know chances are slim that I could get the IS 300 below MSRP when it first comes out. However, my grandmother is looking into a Lexus also, probably an ES 300. If I bring her in and we both get a car from the same dealership, how much negotiation power does everyone think I have then? Whoever the sales guy is has to drool at the thought of getting $70,000+ worth of sales at one time.
SpectraBlueIS300, you will probably have a very good chance of getting a good price for buying multiple cars. No dealer can resist. The faster they move the cars, the more profit they make. Simple as that.