1 - Outside the General store in Pushtoshka on the road, there is an Invisible object which causes vehicles to flip.
2 - The new Dirt roads / tracks around the new castle near Myshkino. There are Invisible objects which cause the Vehicles to flip or spaz out.
3 - Tiny tree trunks and stumps / trees in the middle of the these tracks / roads. They wreck the vehicle even at slow speeds.