To drive in a **safe and comfortable** manner, it is essential to correctly adjust the driver's seat height. The driver's head should be **above the steering wheel**. This allows for a clear view of the road, which is crucial for quickly reacting to any unforeseen events.

- **Visibility**: Having the head above the steering wheel allows the driver to see the road without obstructions, improving response capability and driving safety.

- **Proper posture**: Good posture prevents fatigue and allows for better control of the vehicle. Being too close or too far from the steering wheel can be uncomfortable and dangerous.

- **Seat adjustment**: The seat should be adjusted so that the driver can reach the pedals without straining the ankles and the legs are slightly bent. Additionally, the backrest should allow the driver to reach all controls without lifting the back from the seat.

In summary, the seat height should allow the driver to see the road over the steering wheel, thus ensuring a safer and more comfortable drive.