Most notable are the:

Acoustic noise reducing windshield (although some might argue this is not a great thing due to the cost and difficulty of getting a replacement and the apparent ease with which it seems to crack).

Vehicle Dynamics Integrated Management (VDIM)

Constantly Variable Transmission.

Standard on the Hybrid but also available as an option on the 4 Cylinder XLE are: Smart Key with Push Button Start and Vehicle Stability Control (VSC) with Traction Control.