Road rage in Brazil!
So here's what looks like happens: guy on motorcycle squeezes between cars in heavy traffic.Woman in car says something to jerk on bike. Jerk on bike kicks woman's car. Woman responds by running into motorcyclist. Jerk on bike gets off and approaches car. Angry woman in car hits the gas, slams into the guy and drives over to the side of the road with him on the hood. Jerk on bike starts beating on car, trying to get to angry woman.
At some point the cops show up and everyone goes to jail. (We don't see that part, but we can only hope.)