[NL: <#><Type>,<#><PictureName>, <Y> ]
[NR: <#><Type>,<#><PictureName>, <Y> ]

Neighbor left, Neighbor right

If the left (right) neighbor vehicle has the type <Type>, then the picture <PictureName> is overlaid on the left (right) side of the base picture.  If a # sign precedes <Type>, the action is reversed: the picture <PictureName> is overlaid when the neighbor is not of the type <Type>. If a # sign is placed before <PictureName>, the picture will be mirrored.