TerryJane, that will vary from shop to shop, there's no set rule. I haven't shopped for cars extensively but I've done a few and I've been at the dealership 30 minutes to an hour. Usually. You have to take into consideration the requirements of the shop. If a test drive is not included it will go somewhat quicker. You will need to give the salesperson ample time to make their presentation because to cut them excessively short would not be fair.
On the other hand, you have to control the situation to not let the time spent get out of hand. When you start your conversation with the salesperson, pick up a business card right then. If you don't see one, ask for one and don't continue with the interaction until you get it. If they ask for your identification ask them to make a photocopy and return it to you. Don't go on with the interaction until your get your id returned.
Unless the shop requires assessing your car for trade in, never surrender your car key. If you have to surrender your car key for trade in assessment purposes, give them an extra car key only. Never give them the set of keys you carry.
When you have all the information required and the business card or whatever proof is required, that's the time to rise from your chair and say "Thank you very much. I'm going to think about this." Then stand your ground that you're leaving no matter what.
Here's a tip: If they try to delay you by holding your car, your key, or your license tell them you're leaving now and if they don't produce the car, the key, or the license you're calling 911. Than take out your phone and go for it. You're a woman. They'll try to handle you. Don't accept it.
@TerryJane wrote:
can anyone tell me how long do you spend to do a new car mission, how long do you spend at the dealership.?
Mary Davis Nowell. Based close to Fort Worth. Shopping Interstate 20 east and west, Interstate 35 north and south.