[AhsanU]

I don't get this obsession with younger people wanting to buy nice cars. Have people suddenly forgotten what's important?

The first thing you do after you get a career is buy property - preferably a home. Why? Think of it like this - If you're picking up a random chick and tell her you live with your parents, but drive a great car - you won't get anywhere. If you're looking to settle down with a gal and she inevitably assesses you and your potential, she won't give you too many points for deciding to buy a car instead of a home.

There are a few other factors as well. You have to consider the cost of insurance (which, at your age, will be expensive), petrol, maintenance, etc. It just isn't a wise decision overall. If anything, you can get an E46 M3 now and save up for a down payment on a home. In a few years, you'll have a great car, as well as a place to call your own.