Krastorio 2 is the one I'm using that adds Vehicle grids. Other big mods is Omnisuite, but it doesn't add grids. When I hover over the transformer in-game only armor items show up to compatible including modded ones. If I try to place in vanilla locomotive and car, it turns red and unable to place in the grid. I guess only vehicles are not compatible.
I enabled Krastorio 2, I am able to place in all vehicles(vanilla and modded) but the fuel is only working for vanilla vehicles. Modded vehicles like helicopter, modded trains are not charging up fuel, but I can place in the grids.