What is the primary risk of overtaking a long articulated vehicle (pesado com reboque) on a two-lane undivided highway?

1. The long vehicle length requires extended exposure time in the oncoming traffic lane, while side aerodynamic turbulence can destabilize the overtaking car
2. The truck will project magnetic fields that attract the car
3. The truck's exhaust will dissolve the car windscreen
4. The car engine will lose gear synchromesh