Stackable washer/ dryer

Just got a panda washer/spin dryer portable unit for about $150. plug it into the faucet, drain hose in the sink and 110v 240w, could possibly use on battery power. weighs 28lbs and about the size of a large desk waste bin. Looking for a convenient location to store it since we have limited space. Was going to use the shower, but didn't want to crack the base with it bouncing around while driving. We leave in 2 months to start our first extended road trip. Excited/Nervous all at the same time.