Rarity, being a pony of high fashion wants her friend Twilight to go shopping with her. Of course they need to go in style, so Rarity decided to take the Dodge Viper.
Honestly, in all the time that I've been doing this, I never thought i would make a Mean Girls reference. It's a funny movie, but it's not one of my go to movies for references (even though there are plenty that I can use). I'm sure there are others out there, but I haven't seen a Mean Girls/My Little Pony Friendship is Magic crossover; guess I should keep looking.