Minecraft Speedboat

First you make the boat triangle shape like this. Make sure you make a cone shape on the top or else you'll mess up.

Next you break any ground surface on the bottom of it then replace it with Quartz or Polished Andesite.

You must now make a steering room so when you put the seats/stairs you leave a place open for a fence gate. Put some slabs that you see.

You now make a storage on both sides. Make a fence gate no door for entrance.

Now make a peddle like this on the back then your done!