<prompt> Human: EDIT - Thanks for the splash of cold water to make me understand how dumb this idea is. I might still get a weekend car, but it will be something I can save disposable income for and buy with cash. So, I graduated last year and landed a decent job with a promotionpay track Im content with. At the moment I live at home, and am fine doing that for a few more years, meaning Ive got few expenses. Im putting 15 of my pay into a Roth TSP all of it in a lifecycle 2050 for now, and plan on transferring 3000 into a vanguard total market fund once the ESPP shares I received at a prior job become qualified this year. Additionally I am budgeting to transfer 100 a month into the vanguard fund once Ive made the the 3000 threshold.I dont have any debts aside from credit cards which are paid in full monthly, and doing the math I could pretty easily afford to put 5,000 down and pay 400 a month to drive a car I really want. Ive had my current car for 6 years, and its beginning to have a bunch of little problems that are taking up time and effort to fix. If I ended up getting a different car Id still keep my current one, as Id like most likely get something impractical.Rational me says its stupid to do anything more than just fix things on my current car as they come up, and continue putting miles on it until something big breaks and the car goes on craigslist as a parts car for someone else. However, part of me sees the friends who are saving nothing, living paycheck to paycheck but have fun cars, while Im putting money away that I cant touch for 40 years.Basically, please talk me out of this.  <response>: From a personal finance perspective, sports cars are pretty much never a good financial decision, but it sounds like you know that.As a car guy though, it sounds like your in a pretty good place financially, and I believe that if you can truly afford it and it will make you happier, then go for it. Life isnt just about saving a bunch of money to not use when youre 70. Personally, Ive been eyeing a 1979 Corvette on Craiglist to buy and restore. 