Just one aesthetic suggestion for the timing screen and relatively painless to implement too depending on how you do it, can you alternate the background colour of the rows on the timing screen? I play on a widescreen monitor with both 2D and timing screen maximised, tracking your driver across the timing screen can be a pain in the arse when there is nothing to differentiate the table rows (barring a single hard to see underline under each row) and alternating colours is an easy way of helping with the legibility of a table of data like that :}
What would be nice would also be a specific highlight colour for your driver too so you can see all the relevant details at a glance on the timing screen