So, testing has started. Merc turning up the wick this morning, it's looking ominous for the rest of the grid I think.
Merc and the Renault (in LY no less) are the best looking cars so far, although on the whole the 2017 cars look awful with those shark fins returning, except the Merc who have thankfully not gone with one.
I don't think we'll see the Melbourne-spec aero configurations until the second test, or maybe not even until FP1 at Melbourne, but I still think teams will be hard pushed to catch Merc.