T4 also has aluminum shocks that build perfect with no fuss.
Correction to Bikerbob's post: only the 2014 has the new suspension mounts. The T4 2013 has the same mounts as earlier cars.
The new mounts will still sometimes shift a little with board taps, but not as much as the old ones. They might gain .1 - .2mm of slop, as opposed to like .5mm. And it takes a bigger hit to do it.
-Mike