Klaus: I got back in the room in like 6. The sun was definitely up. I seriously can't go to strip clubs when I drink, you guys. (Roger and Steve arrive at Las Vegas with their new car while "Turn my Swag" by Soulja Boy plays; in slow motion Come on!! You got to be kidding me!!
Scent of a Woman
In order to test drive a Ferrari, Roger and Steve dress up like Al Pacino and Chris O'Donnel's characters respectively from Scent of a Woman. Roger even recites Pacino's lines from the film's Ferrari scene to the salesman's confusion.
All That/Good Burger
The name of the burger restaurant Stan wanted to work was called Kel's Good Burger. This is alluding to the "All That" skits where Kel works as a cashier at the restaurant called Good Burger as well as the movie of the same name.