Comfort and Convenience
Driving position is a matter of preference as much as proportion: some people sit upright and close, others further back. Leg length, height and long-standing habit all push the ideal in different directions.
Safety and Driver Assistance
Knowing how the instrument display works is part of preparing a journey. Warning symbols, trip readouts and menu layouts are easier to interpret when they have been looked at calmly beforehand.
Multimedia and Connectivity
Long trips often involve a call home, or to whoever is expecting you. Where hands-free calling is available, it keeps the conversation separate from holding a phone, and from whatever music was playing.