Nothing!
I am not a Toyota dealer and I do not work for Toyota. This is the first Toyota I ever owned. I bought it because of the high reviews from consumer reports and let me tell you this vehicle is incredible! Besides the fact that it has many features that you will only find in $50,000 dollar cars such as rear camera, smart key fob, touch screen dash board, bluetooth and many more features it also really gets 50+ miles per gallon. I find myself glancing at the screen as I drive to check my MPG. You must drive one. With this hybrid you will learn to PULSE and GLIDE!
Most fun car you have driven? Very boring life indeed!