A quick couple of charts summarising third practice.
Laptimes, by stint and stint lap:
Deltas of laptimes within 1.07 of fastest laptime from fastest laptime:
(I really need to colour the different stints better, or use symbols to identify stints and reserve colours for eg personal best laptime to date, purple to date? Also need to start thinking about where I can get tyre info per stint, and how to represent that? Current charts show how improvements are made over a session, but it would be even better if we could distinguish within stint improvement from between stint improvement?)
See also: F1 2012 Canada FP1 & FP2