Gatsby: "Peculiarly American"

In chapter four of "The Great Gatsby", Gatsby is depicted as "peculiarly American", being impatient, hyper, eager to bring Nick along with him in his luxurious car.  This shows that the American dream changed from values of freedom and security to a value of pride in material possession and adopting a monetary caste system in society.  Gatsby expresses these concepts through his eagerness to drive Nick around and showing off his expensive vehicle .  Through Nick's perspective, this action justifies his reasoning of describing him as "peculiarly American".