What is the optimal angle for adjusting driving posture?

[SimonLynn]

The optimal angles for adjusting driving posture are as follows: 1. Natural bend between thighs and calves: Adjust the seat's front and rear position so that when your right foot fully depresses the brake pedal, clutch pedal, and accelerator, there's a natural bend between your thighs and calves. This ensures proper seating position. 2. 8-degree angle between backrest and vertical direction: The ideal seat angle is approximately 8 degrees between the backrest and vertical direction (though precise measurement isn't necessary). Avoid reclining like sitting in a wicker chair as it's dangerous. Seat height should allow full leg leverage while maintaining comfort - not too high. The standard distance is achieved when holding the steering wheel at 9 and 3 o'clock positions with slightly bent arms. Adjustment method: Extend arms parallel forward onto the steering wheel top, adjust wheel height until arms align with shoulders, then lock the wheel for proper distance.