Three Vallies, among few other spots on map.
I think this is a car bug, but happens on certain type of road spots.
Y 098
X 130
The left turn with any speeds the crossroad makes cars do barrel rolls when driving over it. Speed and type of a car is irrelevant. It can destroy the car and does if you drive over 18km hour, the car teleports forward like rocket, slides forcefully left 3 to 4 times and then force crashes the brown fence.
Drive cars over it on different speeds. Mostly when turning left towards the forest away from the sea.
Occures a lot, not every drive but almost every drive. For me 4/5 drives the car does the roll and hits the fence left from the street with any speed driven.
Slow enough the car will barely miss the brown fence, but slides left agressively without any control.
Actually the left turn glitch happens 90%. Can be reproduced extremely easily. The car jumps and warps violently 1 to 3 meters off the road.