/facepalm
Every single piece of advice in here sounds like it's from a ****ing "I think I know everything, so I'm going to be an *******" car buyer. You people are so far off base, it's not even funny. I've seen a FEW pieces of advice worth a shit, the rest is uneducated assumptions. I sold cars, quite successfully for quite some time, well over 2 years, and I'm still involved very closely with several dealerships, on a daily basis.
OSF (Outside Financing) is NOT, always the best way to go. OSF doesn't have incentivised rates, and you often lose other incentives. And you can't lease through OSF. And OSF rarely gives you a few extra points to get to the next tier, whereas a dealership quite often will. OSF also doesn't have the carry percentages of a dealer bank.
The 4-square is price, rebates, and incentives in the top right, trade offer in the top right, down payment in the bottom left, and payments in the bottom right. And most dealers are going to a 9 square for leases, and 18 squares for purchases.
If you're smart, you purchase new or used, depending on your needs, and what kind of car it is. If you need a large SUV, and you find a good used one, it's probably a safe bet. And always buy certified. If you're buying a truck, sports car, or any other type of vehicle that is known for hard use, then buy new. You don't want someone else's sticky lifters or glazed clutch.
Old age units are very rarely marked, but are quite often spiffed and have a large mini. This means nothing to the purchaser, other than knowing that both the dealer and the salesperson want to sell that car. After 90 days on the lot, that car gets very expensive for the dealer to keep, so they have to move it, and quickly. Just ask your salesman. If he sees a sure $500 commission, a spot on a bonus board, a vin, and most of the time, 2 moves, he'll gladly show you those cars. Vins and moves are used to determine bonus eligibility and amount, so if he can get more than one from a single car, then he'll most often do so without batting an eye. This is also why the under the table pay rarely works. They might make half of what you're offering them in commission, but they make it back quite easily in bonuses.
The test drive is going to be filled with the salesperson making assumptions, and stating things as if you've already agreed to them. Don't argue. Just smile a nod. He thinks he's got you for sure, so the moment the 4 square rolls out, you can argue, crush him, and send him back into the sales office defeated. Have the trade detailed before you take it in to trade it in. If possible, have it done at the dealership you're purchasing from. Then when they nit pick the interior or body, about stains, swirl marks, anything like that, you can blame their detail crew.
Bringing a wingman or third baseman is a horrid idea. A wingman being someone, like a wife or girlfriend that will not be on the F&I paperwork. A third baseman is someone who is in no way related to the purchase, as in a father-in-law, co-worker, boss... This just pisses them off, and does so very quickly. Just like you can walk away from a deal, a car salesman can **** you hard. I've seen sales managers 'sling' customers... Which means submitting them to every available bank, with stretched numbers, so it takes a while to get a 'no or go'. That way no other dealer can submit you, for at least a day or two. And if the bank approves you, they do so through the dealership that submitted the deal, and if they turn you down, it's hard to get them to make a second look when they see your name. BUT, if you buy from the dealer that submitted you, he can call, tell the bank the REAL numbers, and have it approved over the phone, in a matter of minutes.
The first rule of the 4-square (for the salesman), is to get a commitment. When they bring it to you, let them talk. They'll read it all to you, and explain everything. Let them do this. They will ask "Which one is gonna work best for you?" and set their pen down. Take your own pen, it's a blow to their plan. As soon as they lay their pen down, you pull yours out, and state very clearly "It's cool, I've got my own pen". They say the pen is mightier than the sword. This is very true in the car business. After you read what he has presented you with, flip the paper over. Write down your down payment, term (in months), and a payment range of $10. I.E. : $1000 down, 60 x $450 - $460, write down the amount of the trade if there is one. Sign it, and slide it back to them, lean back in your chair, and don't say a word. ANY time you're working with numbers, encroach them. Lean in on them. Sit directly across the table. If you're across from them, you're battling, if you're next to them, you're 'agreeing'. Of course, some salespeople are different, and this works best sitting next to them. Your first offer needs to be retarded. Absolutely insane, and you need to understand, that it WILL get kicked back. But it will help put them in place, just like they tried to do to you with the 'first pencil'. They'll usually say it can't be done. Make a snide comment, something along the lines of "That's not your decision, now run along and ask you daddy little boy". Make them feel like they are a gopher. The deal is between you and the manager, and he is quite literally a gopher. Let him know that you understand this, and are going to treat him as such.
Not just anyone can walk in and purchase fleet. As a matter of fact, fleet requires a DBA most of the time, to get an approval as a fleet purchaser. And rarely will you get a fleet approval on 1 car for you first fleet purchase. Usually, if you've never purchased fleet, you have to buy 2 or more cars to get in that door. Internet departments are great, but correspond by e-mail until you're where you want, or really close, with the numbers. Print your ENTIRE correspondence. Every single e-mail, both yours and theirs. Everything from your initial contact, to the very last e-mail sent. Internet departments are notorious for changing their minds, or pretending they never said something. Internet departments usually start with a near-invoice price, and even if they don't, they have no more wiggle room, than any other salesman. It doesn't matter how you approach the dealer, the invoice and hold back values are the same. This holds true for all dealers too. All of the dealers have the same invoices for the same vehicles, so if one Ford dealer can sell a car for $22,222, then any other dealership can as well. Buy from a dealer that you like, and large dealers are often rude, and rely on customers assuming that it's cheaper because the dealer is so large. There's no such thing as 'buying power' in the car business, at least not on new cars.
Buying at the end of the month is the same as buying at the beginning of the month. Direct dealer competition is minimal, and most clearance sales start at the beginning of the month, and last til the end. In some cases, you might get lucky, and the dealer will be a few units from some sort of goal, but this is RARE, and when it does happen, it happens early in the day, on the last Saturday of the month, as long as there are 3 or 4 days left in the month after that Saturday.
If you have an OSF check, never tell them. Pull it out last minute, but again, I warn against this. There are more headaches with OSF then one would care to think.
Buy whatever you see fit in the F&I office. Gap insurance is a must, and should RARELY be $1000, and almost as rarely above $500. I sold a $51,000 Armada, and the cost on the Gap insurance was $331. Have no fear of what they have to offer, just make sure you have a decent sense of what the product is worth. If they offer you PermaPlate, offer them $150 for it, but PermaPlate or Paint and Fabric protection, is well worth the $150 it's worth. If they hit you with Wheel and Tire coverage, consider the wheels and tires on your car. If you're buying a base model with steelies and hubcaps, it's unneeded, if you got the twinkies and stinkies (High end wheels and decent tires)... Well, you get the idea. Never buy wheels and tires from a dealership, unless you are CERTAIN that the price is right. It hardly ever is.
There's more to it than this, but I don't know you people, so I'm not spending any more time correcting the drivel spilled upon the thread.