Besides the built-in kitchen, the vehicle will also have a “Gear Tunnel”, which is designed to storage accessories made by Rivian. It will be placed underneath the floor of the bed and behind the cab.
It will have a door at each end, that when folded out, creates steps into the bed. The built-in kitchen can be pulled from one of the doors. This will create room for a standup cook at an induction cooker, powered by the 180kWh battery.
You can check the full report by Green Car Reports here.