How the tough job of Amazon delivery has changed with new Rivian vans

Amazon has rolled out 1,000+ electric Rivian vans in at least 100 U.S. cities since July, bringing big changes for some of its 275,000 drivers delivering 10 million packages a day around the world. CNBC talked to drivers about how the job has changed since 2021, when they told us about unrealistic workloads, peeing in bottles, dog bites and error-prone routing software. Here's an inside look at the new tech Amazon says is maximizing safety, comfort and efficiency for a better driver experience.