I have been haphazardly collecting 1/43 scale vehicles and helicopters in preparation for 28mm ATZ zombie gaming for the past couple of years. Things were just a little bit disorganized as a result, so I decided it was time to see what I had on hand. I have managed so far to only buy one duplicate truck, a telephone/power type with cherry picker, which is good. I may try and convert that to something post-apoc'ish - more likely just return it to Toys-R-Us.
Vehicles have been bought from a variety of sources - the usual toy, discount, hobby and department stores, but also flea markets (Georgia and Indiana), thrift/Goodwill stores, convenience stores (Florida), and museums (Germany). Traveling as much as I do for work gives me the opportunity to find new places to scrounge stuff.
My goal is to be able to populate anything from rural (all the farm machinery) to big city environments. I also want to be able to do a truck stop scenario, thus all the big rigs. The trucks range in scale from 1/43 to 1/50. I am still looking for a 1/50 scale Greyhound style passenger bus. There's usually some on eBay but prices are more than I want to pay.
"Get to da chopper!!"
I have been fortunate to obtain a couple of diecast 1/43 scale Bell Ranger choppers, painted and decaled in LAPD livery. I decided I had to have a SWAT or Government "Night Chopper" ( Blue Thunder? - oh yeah, go to whisper mode), so I disassembled one and spray painted it matte black. Turned out pretty nice, although it was a real pain to get some of the pieces separated.
I also have another 1/43 scale chopper in US Coast Guard scheme not pictured. I still have to assemble it.