After owning a limited for 2 years I bought a SRT. Truth be told my Dad and I think the Limited handled better. I know I will probably get a lot of hate for that statement but thats what we think. I still love the power of the SRT and I don't have any plans on getting rid of it. So basically we think the SRT is super quick and the limited is really agile. Both are a lot of fun to drive.

As far as the difference between motors the limited is plenty powerful enough, but the SRT is like adding a rocket to the back of it.