Dimensional
fun DimensionalTraits(totalWidth: Int = 0, totalHeight: Int = 0, totalLength: Int = 0, totalWeight: Float = 0.0f, payloadCapacity: Float = 0.0f, trailers: List<Trailer> = emptyList(), wheeledVehicle: WheeledVehicle? = null, semiTrailer: SemiTrailer? = null)