I've had a 2005, 2009 and 2013 RAV4, So I've the improvements over the years. We just got a 2016 SE.
Some of the small improvements in the 2016:
Door fabric replaced with vinyl - easier to keep clean.
Rear 12V adapter for rear cell charging.
Front Cup Holder fits cups with handles.
Headlights go off automatically now.
Top Sunglass Holder.
Projection Headlights are truly white and very bright.
Love the Push Button Start with Auto Start and Heated Seats.
Paddle Shifters under Steering wheel are fun to play with on windy roads.
235/55-18" Tires make this handle like a sports car.
Some of the small improvements in the 2016:
Door fabric replaced with vinyl - easier to keep clean.
Rear 12V adapter for rear cell charging.
Front Cup Holder fits cups with handles.
Headlights go off automatically now.
Top Sunglass Holder.
Projection Headlights are truly white and very bright.
Love the Push Button Start with Auto Start and Heated Seats.
Paddle Shifters under Steering wheel are fun to play with on windy roads.
235/55-18" Tires make this handle like a sports car.