JIT enables automobile manufacturers to maintain the inventory level to a minimum. But this method highly dependant on effective supply management, because productions only happen when there's a customer who wants to purchase a car.
To make JIT works, your business must have a steady production, high-quality workmanship, glitch-free plant machinery, and reliable suppliers. Although it's capable to reduce the inventory cost, this strategy requires quite a sum of money, time and human resources. That's why you need to know just in time inventory advantages and disadvantages before implementing it in your company.