Posted By atpickles I have had experience of static vehicle displays in a Museum and the principle of risk assessment is straight forward, isolate any chance of starting the vehicle up (lock the keys away), steering lock on, have some method of chocking the wheels to stop rolling if the hand brake is taken off and always have some supervision around. You may in the extreme have barriers up and signs displayed but that may be over the top. PS By the way remove cigarette lighters as children like to play so consider who will be looking around, you could even consider taking the battery out of the vehicle but this may affect the engine management system and alarm. Separately you must also consider your premises Fire Risk Assessment which would include storage of vehicles on the premises and would include considering means of escape, means of detection, signage and provision of a fire fighting equipment. This would also take into account the building design, materials of construction and other flammable/ignition sources. You would also have to check if your insurance covers the premises for storage of vehicles. There is also a balance up of storing fuel in tanks full or empty. Ideally the fuel tank would be taken off and purged of fuel for long term static displays but if there is a turnover then a full tank would be better as there is less of an air fuel mix to combust, but I would check with your insurers on this point. Something else to consider is, how old is the vehicle/s and is all wiring and fuel tanks etc in good condition. Lastly I would look at the method of moving the vehicle in and out of the area for normal and emergency occupation as you would have to consider vehicle exhaust fumes exposed to staff and pedestrian movement out of the showroom. This should give you a few threads to run with!