MrCrayfish’s Vehicle Spawner Mod 1.12.2 is a unofficial add-on for Mr. Crayfish’s Vehicle Mod.
In that mod, all vehicles are spawned in-game with controls, which get cumbersome. He’s planed on adding crafting recipes, but until then, this add-on will help to liquefy them until the moment comes. This add-on adds things that execute these commands when appropriate clicked, somewhat like a solid egg. With the item in your hand, right clickon, and the vehicle will probably spawn. This easy! All things can be found in the Creative Interface under Mr. Crayfish Vehicle Spawner, and each item will spawn in that certain motor car. Simply right-click the Wood, Stone, Iron, Gold, or Diamond Engine objects in your hand, while being close or inside the car. You shouldn’t right click on the vehicle when altering engine forms, or you will sit within the car.