“the road curves and his vehicle goes straight.”
Probably speeding and looking at his phone briefly.
That stretch of road into Rancho Palos Verdes has numerous accidents. The road is a steep downhill that requires full attention and regular braking. When I drive it cautiously I get many locals trying to speed me up by tailgating and swerving around me.
is it because you’re looking at your cellphone while you’re driving???...