vehicle type

a group of vehicles, including variants and versions of the same category, that do not differ in at least the following essential respects: — category, — manufacturer, — type designation given by the manufacturer, — essential construction and design characteristics, — backbone chassis/chassis with side members/articulated chassis (obvious and fundamental differences), — for category T: axles (number) or, for category C: axles/tracks (number), — in the case of multi-stage built vehicles, the manufacturer and the type of the previous stage vehicle