Yes, I drove the XR pretty much loaded except moonroof. It stickered just under $26,000.
On the acceleration difference, I can't find a GTP test with an ATX for an apples-to-apples comparison. I do find the MTX GTP tests are only a couple tenths quicker than a Mazda6s MTX tests however. I would be inclined to believe the ATX comparisons are similar.