A place to discuss the characteristics of the cars in Formula One, both current as well as historical. Laptimes, driver worshipping and team chatter do not belong here.
Two more shots via AMuS. Here's one of the full engine cover. Rear fin is new, much smaller and drooped backwards:
They also appear to have reverted to an older-spec front wing:
"Stupid people do stupid things. Smart people outsmart each other, then themselves."
- Serj Tankian
Sauber has a new cooling system that will allow them to run their 2016 Ferrari engines at full power.
One of the reasons Sauber used to justify using 2016 engines was that they already knew and understood this engine and it would benefit them in the chassis side... and they come up with a cooling system that can't run the engines at full wick