Even though I’m not a regular for this championship, when I’m directly behind the SC there’re 3 things that usually save me from a DNF or DSQ
1) Stay of the racing line, the SC will only stay on the racing line so if it stop dead in front of you at least you’re ‘along side’ it, instead of in its boot lid :P
2) Dont weave on the racing line, just use half the track to weave off the racing obviously
3) Stay far back, usually 150-200m back does it for me, and don’t try and speed up and slow down to rapidly , this will cause the SC to LAG more as it will slow down for you if your slow and too far back.
Hopes this helps