


... I'd love to read a full report on the track day you had, Scawen. May fit well in the General Racing Talk section. So... please 
In fact I didn't watch the whole video, I just opened it and noticed it was wet race.
:

. But those lines are marking the orientation of the car. After the first hit the car should rotate a bit just as is seen in those images but I can't see why it should change the trajectory of the car, let's say, some degrees to the right. I can understand better if that would vary the trajectory some degrees to the left and that would mean a smaller frontality (?) in the hit. I think I'll stop here, It's as painful for me to try to express something in English as the hit was for Robert
I must say: we (at least me) need some official data 
(or whatever it is called in english) That would be by far more precise, but takes lots of time. Heheh, ok no problem, that was just my opinion since it's a bit hard to judge from what we have seen from videos 
(I've got some experience on doing photographic restitutions). Just look at the video posted above and compare:
). That's all I can tell with my english 






and also my point of view.