Division 2.3

‘Bonnet rear reference line’ means the geometric trace of the most rearward points of contact between a 165 mm sphere and the frontal upper surface, when the sphere is traversed across the frontal upper surface, while maintaining contact with the windscreen (see Figure 1). The wiper blades and arms are removed during this process;

If the bonnet rear reference line is located at a wrap around distance of more than 2 100 mm, the bonnet rear reference line is defined by the geometric trace of the 2 100 mm wrap around distance. Where the bonnet rear reference line and side reference lines do not intersect, the bonnet rear reference line shall be modified according to the procedure set out in point 2.17;