Difficult as fuck, took me 1 hour to find out where to jump and another half an hour to land properly on the roof. I died about three times but finally:
Tip: On the 1st picture on the right on this NAM parking u can see some kind of statue on this triangle kerb. U have to bounce on this kerb and u need a lot of luck - it's not a bike, u can't control infernus when it's in air.
Ok now ur task is to get on this house with this flaming thing near NAM:
It's easy if u know where to start
My tip: You can't jump directly from the street on it