OnTheHoist.com

Avoiding negotations
You can refuse to negotiate with the sales staff/managers at car dealerships. The negotiation process is a sales technique they use. The sales theory is the longer you are in the dealership, the more likely you are to make a deal. The technique I use is to avoid the whole process by making a one-time offer. This requires some prior research.

How I determine what I am willing to pay for a vehicle
You should know the approximate market value of the vehicle you are trying to purchase. I use a combination of the trade-in book values and common asking prices I see on websites such as Trader.ca. From my experience most dealers will sell you a car for a profit of a few hundred dollars. For Example, if Toyota is willing to pay $8000 to someone trading in the vehicle to them, and are asking $11,000 for the same car on the lot, you can probably get it in the 8600-9000 range unless they actually do a lot of work on it...I have yet to be convinced that this is often the case.

Test Drive
So now you know you are willing to pay let's say $8800. You find the make/model you are interested in at a dealership you feel you can trust. You take a look at the vehicle inside and out and decide whether you'd like to test drive it. Test Drive it properly, search the VIN on your wireless device if you have one (See Tip 2) and decide whether you will make an offer to purchase the vehicle.

Avoiding the negotiation
When you sit down down to negotiate and the sales person starts on about how you should offer low to get closer to the price you want to pay and how he/she is on your side blah blah blah..You can politely make a one-time offer at the value you had predetermined. I have done this 3 times and each time it has worked and the deal has closed quickly. I always make the deal subject to inspection by my mechanic and write that directly on the contract.