Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Should I get a car loan before shopping for a car?
You have a good start (estimated max amount you will pay, estimated max down payment, and term) Now go to your bank/credit union and apply for the loan. Get a commitment. They will give you a letter, you may have to ask for it. The letter will say the maximum amount you can pay for the car. This max includes their money and your down payment. The dealer doesn't have to know how much is loan. You also know from the loan commitment exactly how much your monthly payment will be in the worst case. If you have a car you want to trade in, get an written estimate that is good for a week or so. This lets you know how much you can get from selling the car. Now visit the dealer and tell them you don't need a loan, and won't be trading in a car. Don't show them the letter. After all the details of the purchase are concluded, including any rebates and specials, then bring up financing and trade-in. If they can't beat  the deal from your bank and the written estimate for the car you are selling, then the deal is done. Now show them the letter and discuss how much down they need today. Then go to the bank for the rest of the money. If they do have a better loan deal or trade in then go with the dealer offer, and keep the letter in your pocket. If you go to the dealer first they will confuse you because they will see the price, interest rate, length of loan, and trade in as one big ball of mud. They will pick the settings that make you happy enough, yet still make them the most money.