Assessable value of tractors excludes optional mud-guard seat supplied only on request as a non-essential accessory.

The optional luxury mud-guard seat supplied only on buyers' request was treated as distinct from an essential tractor component because the tractor was complete without it and the seat was not supplied on all tractors before delivery. On that basis, its value was not includible in the assessable value of the tractor, unlike accessories or items supplied as part of the standard vehicle equipment.

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Issues: Whether the value of the optional luxury mud-guard seat supplied with tractors was required to be included in the assessable value of the tractor.

Analysis: The tractor was held to be complete without the mud-guard seat. The seat was fitted only on request of buyers as an optional convenience and was not supplied on all tractors before delivery. On these facts, it was treated as distinct from an essential component of the tractor and unlike items such as foot rests in motor vehicles or tool kits and hydraulic jacks supplied along with vehicles.

Conclusion: The value of the mud-guard seat was not includible in the assessable value of the tractor.

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