It sure does run nice. It sounds similar but slightly different to the American Super WD-6. Of course, they start on gas and have a different injection system. What size of engine do they have? The American version uses the D-264
I think its better tractor in a collection and is governed so nicely at either low idle work such as this but still has loads of grunt at high revs and even governs up more so when working hard and seems to go faster going up hills on the road swell. the engine is Bd-264 same as the B450 i would guess that B stands for a British Variant.