Question $1$:

As of $2022,$ fully autonomous $($driverless$)$ trucks are still behind the current technology in terms of performance and are far from being able to replace human drivers in most applications. However, companies like Walmart started partnering with startups to use fully autonomous trucks for business$-$to$-$ business deliveries between a Walmart fulfillment center and a Neighborhood Market grocery store.

a$.$ What are the characteristics of this innovation model by autonomous truck companies? b$.$ Do such partnerships pose a threat to incumbent car and truck companies? Why?