Why should USAA collect data on which auto parts are fixed most frequently? What could it do with this data?

To devise their business strategy accordingly

Explanation:

The USAA is an auto-insurance company and with a wide array of customers, information such as will lead them to further invest and provide more services that can cater the singular most serviced auto part. This can lead to a rise in the trust and loyalty of the customers.

The collection of such data can be beneficial for the company as it can use it to devise the information to shape its policies accordingly. The most frequently fixed auto part information can lead the company to provide more easy and accessible service to its customer. This would ensure a geometric growth in the customers. By providing relaxed services and lesser charges on the service, USAA can garner a lot of new customers.