Amazon is in "advanced talks" to acquire autonomous mobility start-up Zoox, according to the Wall Street Journal.
Neither company has commented on the report, which says that the deal would value Silicon Valley-based Zoox below $3.2 billion.
Amazon is heavily involved in electric vehicles has been less bullish publicly about AVs.
However, home deliveries - a key part of Amazon's offering - is one area in which driverless vehicles might be expected to make an impact.
On its website Zoox, which was formed in 2014, sets much store by its experience in complex road environments.
"Zoox is driving autonomously in ways that no one else has shown. We are driving in cities and on highways. Making unprotected lefts and rights on red. Yielding to pedestrians and passing double parked vehicles."
It describes San Francisco and Las Vegas as 'anchor' markets "for us to rigorously test and validate".
The company says it applies "the latest in automotive, robotics and renewable energy to design a symmetrical, bidirectional, zero-emissions vehicle from the ground up to solve the unique challenges of autonomous mobility".
Below is a video showing a 'fully autonomous' Zoox drive through San Francisco...