There is a time for nice and a time for not. You will go very far in this world both business wise and with women if you learn when to use both.
Additionally, being nice doesn't mean being spineless. Stand up for what you want, be aggressive, go for it, more important than all that is to be confident. Be POSITIVE that you are right.
and i take it back about the buick. an A4 or something. something plain and classy that kids don't drive to prom. wait yes they do, rich kids have inherited the earth. ah whatever.