I finally put together my official GW Ork Battlewagon. A while back I made a kustom one. I've owned the official kit for some time without building it, but when I read in the codex that Nobz could take one as a dedicated transport, I was inspired to build and paint it.
For my money, this is one of GW's best of the new generation of plastic kits. Ingeniously designed with a number of optional add-ons, Ork players can't go wrong with this one.
Here's a shot of the whole wagon. The paint scheme is in keeping with my standard Ork beat-up, weathered. I generally do not spring for the "Red Ones Go Fasta" rule, however.

The full wagon from another angle. I did not glue the top section and turrets so I'd have an easier time transporting them, and I could point them at who I was firing at.

Here's a shot taken from a hovering Def Kopta (thus the poor focus and photography):

Here's a closer shot of the passenger side door. There's no interior details for the kit, so if you wanted to leave this open, or make it hinged, you'd have to import the driver from the Trukk kit. Not a bad idea for my next BW--if there is a next one!

Just another example of the many fine details on the kit--I love the hanging armor plates that you can attach to the rear body section.

Here's a shot of the "big gun", a pretty standard ork kannon that would be suitable for punching vehicles or high Toughness value creatures--I'm looking at you, Wraithlord! There was a great periscope/shield bit you were supposed to put next to the machine gun cupola, but I felt like the MG could not traverse properly with it there, so I missed it out and instead capped the aperture with a bit from a Burna Boy backpack.

A view into the rear crew/passenger area:

This last one provides a close-up of my stippling work:

Basically, I sprayed the assembled BW black, then sprayed it roughly with GW Boltgun Metal spray. Once dry I stippled on GW Foundation Mechrite Red. This is done haphazardly. Tires and treads were re-blacked, then roughly dry-brushed with various craft store muddy and creamy browns. The whole BW was then liberally painted with a mixture of Devlan Mud, Badab Black, and white glue (for added control and flow enhancement). Then I painted the cupola ork in my standard method. That's it.
Job's a good 'un!
Scott