F1 2012 Bahrain Practice - Results and Fastest Laptimes

A quick visual review of elements of practice 1, 2 and 3. Firstly, session utilisation charts, showing how each team made use of the sessions:

Here's how the teams did in terms of laptime and position:

Hmmm... for the positions chart at least, I need to choose symbols that allow you to see when one driver has the same position across multiple sessions... Here's a first pass:

But that's not right, is it? We lose HAM and SCH in FP2 for example... Hmm...