[And1M3]

If you don't have any money save up, I advise you not to purchase a new M3.
Since you are making $60k a year, you have to ask yourself is your job stable?
You have to think about the future.You don't want to be layoff and not be able to make payments.
You should save up your money now and get the car later.

I just bought a new M3 myself and I had enough money save up to pay off the car in full.
But I choose not to spend all my money on the car and spend it on every day living.
I am currently financing the car for $550 a month and living a comfortable with that payment.
You should not tie yourself down at this young age. Save up and invest your money wisely first.