Pay cash whenever you can. Buying the car on a loan is just another way of taking consumer debt. If you are interested in not working the rest of your life, then you want to minimize those debts as much as you can. Sure, it helps to build your credit, but the problem with car loans is most people get in over their head. They want the best, the latest and the biggest SUV and people might have two brand new cars and $1000 a month in car payments. Building your credit is a good thing but you just have to do it within reason. Take a partial loan. The best way to build credit is to take out loans and then pay them back on time or ahead of time. If you do that, that's it, it raises your credit score faster than anything.