This is the Northoat Crownstar. Or rather, it's military counterparts.

The NO3SC or "Viking" is a standard Staff/Command Vehicle, driven by higher ups in the Skullundian Army.

The NO3A or "Hercules" is a unique military ambulance. The reason it has a extended roof is for a special tool for carrying injured soldiers. Theres a special hoist that can lift up a stretcher, allowing the ambulance to carry 3. (Once the lift does its job, the back of the vehicle can fit 2 more people