As to the scale they are 28mm. I use old Dinky models and convert them as they are 1/60 to 1/50 scale. Their jeeps are a little big, but they convert well.
The Me109's are Dinky conversions as well (as is the Blitz Buggy)
The Opel Truck is A Del Prado fire engine with a scratch built cargo bay.
The Kubel is a 1970's playart diecast (Hong Knog cheapie toy) with my own cast wheel hubs and new tyres etc.
thanks for your kind words
BB