It is not advisable to drive parallel to a two-wheeled vehicle in any case due to the following reasons:

- **Safety and space**: When overtaking a two-wheeled vehicle, such as a bicycle or a moped, it is necessary to maintain a **minimum distance of one and a half meters**. This ensures there is enough space to maneuver and avoids dangerous situations.

- **Lane change**: To overtake correctly, you must change to the left lane and not do it in the same lane in which the two-wheeled vehicle is traveling. This is crucial to avoid collisions and ensure the safety of both drivers.

- **Visibility and road conditions**: In situations where visibility is reduced, such as in sharp curves, crests, or adverse weather conditions, it is especially important not to drive parallel. This could endanger both the driver of the two-wheeled vehicle and other road users.

- **Accident prevention**: Driving parallel can lead to risky situations, especially if the two-wheeled vehicle makes unexpected maneuvers or if there are other vehicles trying to overtake.

For these reasons, you should always avoid driving parallel to two-wheeled vehicles to ensure the safety of all road users.