Elon Musk's Tesla Inc.

(NASDAQ:TSLA) has spent years pitching investors on an autonomy revolution, but PepsiCo Inc.

(NASDAQ:PEP) disclosed it is running more driverless vehicles on U.S. roads than Tesla's entire unsupervised robotaxi service.

The Wall Street Journal reported yesterday that PepsiCo has 41 fully driverless box trucks on public roads in Arizona, Texas and Arkansas, hauling Doritos, Cheetos and Gatorade between bottling plants, warehouses and retailers like Walmart Inc.

(NYSE:WMT) and Dollar General Corp.