I'm below lvl 5 (lvl 3) and don't have the building to research tech. I watched my race today and saw a lot of other cars were using DRS and KERs while my drivers were not. They are also lvl 3 and shouldn't have the buildings needed for that. My drivers are all much better than the others when you compare ratings.
What gives?
I clicked the KERS power bar during live race and that wouldn't work or change anything. Both of my guys used maybe 5% of their KERS reserve vs other driver who used all or most of it.