Wide and flick is the way with these corners. The left at the start of the 2nd sector I've not been able to take flat out. I go wide, lift off and then flick the car into the corner. If you do it right you'll catch a bit of the dirt on the apex and then be able to bomb it flat out to that right hander, where it's another lift off and flick.
Be careful what community challenges you do. Noticed that I'd lost my Venom Hot Lap time to a slower time in a Venom Hot Lap community challenge. Asked them about it on twitter, but no reply as of yet. I don't mind faster times/scores wiping over the Tour ones, but slower times/scores is not on.