Everything would be driven by most common Enterprise Systems like SAP. You have to get in contact with Supply Chain Managers of bigger 1st tier supplieres like Bosch, Continental, Magna, ZF, Denso.

If you can access those via the focal firm, logistics service providers might be another possible data source. Many large firms rely on very few logistics service providers that therefore have valuable data. The challenge here is confidentiality and data disclosure.

Import commerce data may provide an industry view.