Based on a Tata Winger sleeps 4 on board

Amenities :

• Sofa come bed
• Double drop bed that easily sleeps 2 
• Pneumatic activating valve based washroom : with a basin, commode and shower with hot & cold water supply
• Kitchen : burner, sink, microwave, 12/24 VDC fridge

If you are dubious about getting one built, you can also rent this or similar model and get the gist of caravanning, experience your own Motorhome Adventures