Tested and is fully working. Both doors open by buttons on the controller. However, there is some slight communication issues between the controller and the car: you may need to press the buttons for longer or a few times for the action to happen. There are marks around the car, please check all the pictures. The right door is a bit loose. There is corrosion in 1 of the battery terminals, but doesn’t affect its use.
The controller’s metal contacts have been pulled a bit outwards - to make contact with the battery. If the controller isn’t working then simply pull them outwards carefully. These can be pushed inwards when installing the 9V battery.