Start Line Bug
The start line of the minimap is placed at the start position with respect to the position and horizontal rotation of KMP/KTPT.
But there is a Start Line Bug in Mario Kart Wii. For races in Mirror Mode, the rotation is not mirrored. The start line has a wrong direction (also the same if unmirrored). Only if the horizontal start direction (y rotation) is a multiple of ±90° (one of 0°, ±90°, ±180°, or ±270°), Mirror Mode shows a correctly rotated start line because of symmetric reasons.
The LE-CODE mod by Leseratte fixes this bug, where the start line rotation is correctly mirrored on the minimap. Additionally, it is possible to display the start line at another position if a secondary start position is defined.