All I have to say is my S4 is a 10 AE .. and i would gladly run with any S5 you all have. It all about mods... some of you talk of Lag on the S4 ... well, maybe stock. But i have never drove a S4 stock. Work on the car .. get it to run right .. and either, or, will be great. I like the treats my car provides. Leather seats .. hell ya. thats leverage when sliding up & back. Power steering, your damn right, Im to lazy to crank that wheel when I park, AC... you bet your moms virginity on it, its hot as hell here. I like the *** end look of the S5 myself... but I'm a *** guy anyways, pick a car and be happy.. thats what I did.