For real. Guess what, life is also a depreciating asset, and then you die. If you feel owning a nice car will make you happier and you can afford it, the correct decision is to get one, even if "objectively" speaking it's not a wise financial decision. I like nice cars and I'm going to get one as soon as it becomes feasible, ie the tail end of residency. If I'm going to sink money into a sexy car, it's gonna be when I'm 29, not 49. Frankly, I'd rather make financial sacrifices during my geezer years to be able to enjoy my prime than the other way around. Delayed gratification is only wise up to a certain point given that we are mortal beings.
Hell, there is even an argument to be made that spending some of your money as you go over hoarding every last penny like a Dickensian miser is in fact a wise move from a logical, objective point of view. You're hedging against the very real possibility that you'll get stricken down by disease or trauma before reaching your "golden years," or that geopolitical changes will wipe out the value of your investments, even hard currency and property. The second half of the 20th century and up to now has been extremely unusual in that we've enjoyed an era of peace and tranquility in the West that's quite atypical historically speaking. Nothing good can last forever. The realignment towards Asia and the demographic transition underway in the United States and Europe make the continuation of this stability over the lifetime of today's medical students/residents unlikely. Spend that money while you can fellas!