@keithcollantine I think the one that Bianchi is using is a different one to what you have shown in India. The ‘fin’ on the back of the engine cover that Bianchi is using sees to be one solid part all the way down the cover, pause at 15:16, whereas the one in India doesn’t run the full length of the body work, if that makes sense.
The India engine cover seems to look more like the one which Massa was using earlier on in the video, between 1:40 and 1:44.
Might just be my bad eyes in the morning but that’s how I see it