R.A.F Bomber resupply set motorcycle

[Paulus66]

Hi all,

I've just got hold of the Brengun P.E set to upgrade my bomber resupply set, which I'm sure will make a superb kit set even better. The one thing that is really griping me is, the motorbike on the box is highly detailed compared to the one in the box. Does anyone know if this a commercially available upgrade or just some fantastic modelling skills.