Quote - That's going to be a bit of work, but considering what there is so far, it should turn out nicely. I wonder how well this will work with any rigging and Sparrowhawke3D's wheels plugin and his tracks & chains plugin.

ya, it's certainly a learning experience!!!   The hard part is going to be the derailleur!

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Hexagon, Carrara, Sculptris, and recently Sketchup.