<prompt> Human: My current monthly obligations: 1300 towards rent, 1000 to parents, 3000 other expenses. Salary is 140k per annum 7800month in-hand. I just finished paying the last installment of my student loan, so I have 2k room from next pay check. I dont have a car now, been living off Uber and carpooling with friends. But Im really tempted to buy the 70D coz thats the cheapest Model S. How badgood an idea is it? What does it mean for my long term finances? In general, what is a good thumb-rule to determine the limits of spending on a car.Edit: Thanks all for the suggestions. Thats a resoundingunanimous NO. I guess I was equating the car affordability with monthly payment affordability, looks like theres a lot more to it. Also, I do have 20k cash in savings, shouldve mentioned that earlier.Follow up questions apologies for more dumb questions:- Wanted to understand more clearly why its such a bad idea - is it an opportunity cost issue, that I really should be saving up instead of blowing it on a car payment. What if I can cobble up 1k-1.5k savings even after I pay the monthly lease, does it change anything I realize it probably wont, but playing devils advocate for more clarity?- Why is it advisable to have a huge down payment as opposed to taking a loan covering as much as possible. In case of any incident, Id at least have my cash left if I take a loan, no? definitely dumb, but I honestly dont know whyI guess Im trying to understand more clearly why being able to afford monthly payments insurance for the foreseeable future doesnt equate to affording the car.  <response>: You are basically starting with roughly 0 net worth, and youre willing to buy a car thats roughly 80 of your annual salary after taxes. Please reconsider. Start smaller. First build up some savings, a buffer. 