A new car is never an investment anyway. But to answer 240's question.....
If I did receive that kind of pay raise it would very difficult for me to not buy some sort of vehicle upgrade.
I just like the finer things in life, I guess. And as long I'm not in over my head financially, then why not? Being single correlates with that type of behavior. When you have a family, indulging in a new ride for just you seems kind of silly and maybe selfish.