If you adjust the driver's seat, the head restraints, the steering wheel or the mirror while the vehicle is in motion.
If you fasten your seat belt while the vehicle is in motion.
, seat belt 
and driver's seat 
: You are sitting as far away from the driver's airbag as possible.
You are sitting in an upright position.
Your thighs are slightly supported by the seat cushion.
Your legs are not fully extended and you can easily depress the pedals all the way.
The back of your head is supported at eye level by the middle part of the head restraint.
You can reach the steering wheel with your arms in a slightly bent position.
You can move your legs freely.
You can see all the displays on the instrument cluster clearly.
You have a good overview of the traffic conditions.
Your seat belt sits snugly against your body and passes across the centre of your shoulder and across your hips in the pelvic area.