regular versions. It does not give it a different suspension that I know of.
I have a Matrix S. The base model has a 1.8 L, and the S has a 2.4L.
Now ask me if I know what any of that means and no I don't. I just know that when the shit goes down, I can accelerate the hell out of there. It's really nice for getting on the freeway. I'm used to putt putting into traffic and this thing moves baby.