There are a few things you need in order to build a wooden car. The first is alder wood, which is the most common type of wood used for cars. You can find this type of wood at most lumberyards and home improvement stores. Next, you’ll need some screws and nails. You’ll also need some saws and clamps in order to cut the wood into pieces that will fit your car. Finally, you’ll need a drill and a hole in the bottom of the car for the battery to go through.