Car production is big business, and there is a lot of money involved in the process. Last year, 1.72 million cars rolled off the assembly line in the UK alone creating a turnover of £71bn in 2016.
Manufacturers at all levels with the supply chain are under pressure to meet deadlines and targets. Thus, there can be faults with parts and consequently with the car. Additionally, faulty or incorrect parts that are placed into vehicles can cost automakers millions.