At an uncontrolled intersection of roads with equal status, two passenger cars approach simultaneously from perpendicular directions. Which vehicle has the right of way under the Law of the Republic of Azerbaijan 'On Road Traffic'?

1. The vehicle approaching from the right side ('rule of the right hand').
2. The vehicle traveling at a higher speed.
3. The vehicle intending to proceed straight ahead regardless of approach direction.
4. The larger or heavier passenger vehicle.