With regard to putting all four wheels over the white line, either to the inside or the outside, several drivers at yesterday's BTCC meeting at Brands Hatch were given black & white warning flags for it, predominantly at Paddock Hill Bend and Graham Hill Bend. The commentators made a number of references to the apparent rule of thumb that more than three transgressions would be likely to attract a penalty.
But it seemed to me that a lot of drivers were putting all four wheels off the track repeatedly, and despite the flags that were handed out I can't recall any driver actually being given a penalty.
On a related subject, Max Biaggi was given a ride-through penalty for a jump start in the WSB race at Donington. He failed to carry out the penalty and was duly shown the black flag. Although he obviously should have obeyed the initial penalty (maybe he argued that he never saw the signal), I can feel a certain sympathy for him as it was quite clear on the replay that although he did move quite sharply (about a foot forwards) before he should have, he also managed to completely stop again before the lights actually changed. If that happens in F1, doesn't it mean that a penalty is avoided? I seem to remember this happening to Vettel in the past.