Looks like Cybertruck has a very low ceiling for rear seat occupants. Front occupants heads are positioned near the peak while rear occupants heads are close to the end of the slope at the edge of the cabin. Cybertruck has more ground clearance than an F-150 but it’s overall height is lower than an F-150. This tells me that the height of the body (floor to roof) of the Cybertruck is lower which can mean minimal head clearance. Tesla has used low sloping roofs in all of its cars but this is a negative for a truck. I know a lot of the people who rode in the back for the reveal commented about how the headroom in the rear seat was plenty but are they comparing it to a Model X or an F-150/Silverado?