Main location where you store all your cars. You can stage them up, slot materials into them and rebuild parts here. You see red arrow at cars which can be upgraded with the parts you already own.
There are also all the cars you haven’t got so you can track your progress of collecting blueprints for them and eventually owning them.
In storage (down right button under cars) you see all spare parts and materials you have and you can salvage them to earn salvage points used in Chop Shop.