Green Lights, Yellow Cars, and Church Steeples

I thought the Green Light was like money. That was Gatsby's goal. It was to make money to rise to that class Daisy is in. The Green Light is "far away" meaning Gatsby's chances for error are very slim and had to work harder than ever to make it to the level he is at now. The Yellow Car I took as showing off his money. He tried to be flashy. I do not really understand why he did so, maybe to lure Daisy in and to try to get her attention I guess. The Church steeples come from Immanuel Kant whom developed his theories of morality and reality while looking at a church steeple. Nick considers the people around just like Kant considered and contemplated morality and reality like Nick did as he watched drama unfold.