He heard the pace note wrong and went too fast..and couple of trees, who cares
He said "let's wreck this car here and do mistakes and then we'll be better for first WRC rally. That's why we are here."
I think it's pretty hard to learn to drive with what you hear when he's always been driving with what he see. Anyway car is repaired and practising continues.
His brother rolled Kimi's Fiat 3 times and told he used Kimi's old pace notes which were bit too optimistic for that curve.