There have been some really interesting nice scale Diecast trucks being released in 1/43 scale. Diecast Direct one of the main vehicle sales companies that supports the OGR forum and advertises in OGR magazine has several nice trucks shown on its website;
Look at the Neo a bit pricy or the cheaper but nice IXO trucks very very nice with lots of detail for the price, have picked up a few of them.
I have been trying to find some nice 40 Foot trailers to go with the trucks there is a very limited supply of the old AMT 1/43 40 foot trailer kits if you hunt you can find them on line. I have a good stock of the old AMT truck and trailer kits. The trailers come out at 11 inches long, I note the newer Lionel 40 foot trailers show on the website as 10 inches long they have several available in 2 packs;
Does anyone have any of the 40' Lionel trailers how do they look with the 1/43 trucks???