There is quite a bit of discussion on the forums regarding what colour to use for painting Panzer Grey. From what I can gather, if you want to go for accuracy then you should be painting your vehicles very dark, almost black but some modellers have gone with a lighter colour to compensate for the smaller scale of a model. With 28mm you can probably get away with either option looking okay but when you start getting into the smaller scales, an almost black colour vehicle is going to be looking a little bland.
I have opted for the less accurate but more visual look of the lighter blue/grey using Vallejo German Grey (995) then highlighted using a white mixed in with the colour.
I painted a test piece on a Lledo die cast vehicle, which was still a little dark but usable for my early war or even WW1 collections.
The rest of the vehicles are from Warlord and looking from left to right we have an Opel Blitz Truck, a Panzer 1a, Panzer 35(t) and a Panzer IV AUSF.D which I will be using to support my early and mid war collections.
The resin on the Opel Blitz was warped so Warlord sent me a replacement which had both options of open and a covered top, so I painted both.
And to finish with the usual action/staged shots.