BMW Sauber have double element on their crash structure. Talk about using all the available space!
Macca have H-Beam wing (may not be new for Monaco), but this is the first time I've seen Macca with the fairings behind their driveshafts (I know they did not have them earlier this year).
Ferrari have probably the smallest gurney flaps I've ever seen, can't be more than 5mm. I think this is the first time they've appeared on the upper element. And a good picture of the device attached to the bottom, it's supposed to help clean up the airflow.
F1.com Tech Analysis wrote: The upper profiles have also been revised, with small vertical fins (yellow arrows) added, to increase pressure in the profiles' outermost sections. They also help to better direct airflow towards the barge boards and sidepod inlets.