None of our current models are equipped with a bathroom. We've found it to be more functional and effective to keep a good deployable toilet-tent nearby.
Showers however are something we DO equip our models with. All of our Deluxe Packages include a 7-gallon Road Shower from Yakima. A very reliable, pressurized, aluminum bodied, heat-sensitive water source. Take a shower with warm water, spray off your dishes, and stay refreshed. It's an easy way to make things even easier.