Edmunds Daily has an excellent article on the topic. It makes several key points:
* Most dealerships are willing to "deliver" the new car you want to buy.
* It's best to push for the delivery just before you agree to the deal.
* When the car is delivered you completely avoid the finance and insurance office (F&I), which is where many car buying mistakes are made.
* Instead of sitting in a little room and being pressured to buy extended warranties, paint protection packages and other high priced items and services, the contracts arrive with the car. There is no chance to add any extras.
* Contracts are being brought by a porter or other non-salesman type. All they want is your signature, a check and proof of insurance.
* If you pick up the car at the dealership, they won't print the contracts until you get there. The wait just to get into F&I can be an hour and the process can last an hour or longer.
If you like to read about cars, I highly encourage you to check out Edmunds Daily. The full Edmunds "Savvy Shopper" article can be found here.