DeepWay and STO Express Complete First L4 New-Energy Heavy Truck Road Test in Yangtze River Delta

This matters less as a tech milestone than as a commercial one: pairing autonomous driving with new-energy heavy trucks in express delivery points to a logistics model where fleet operators, not drivers, absorb the risk and cost of long-haul runs. The Yangtze River Delta's dense freight corridors make it a logical proving ground, and STO Express's involvement signals that a major carrier is willing to test this on live routes rather than isolated tracks. The open question is whether this remains a one-off demonstration or becomes a repeatable operating model — and how regulators treat L4 trucks sharing public roads with human traffic.