I was lurking around on the Austin forum and saw this building, 405 Colorado, and it reminded me of the Sundial Tower. Along with having a giant parking podium and an angular design stacked on top, it's about the same height: 25 stories, 356 ft. Sundial will be 23 stories, 344 ft.
The big difference is that Sundial will have 425k sq ft while 405 Colorado apparently only has 210k sq ft, which is probably explained by Sundial's east-west width.

The final product:
The exterior lighting is also pretty cool. I hope Sundial has something like this: