It marks the latest expansion for Amazon's Zoox self-driving unit, which opened rides to the public in some parts of Las Vegas and San Francisco last year.

The Amazon unit expects a federal waiver for its purpose-built electric vehicle–with no steering wheel, accelerator or brake pedal–enabling it to start making money in months.

It marks the latest expansion for Amazon's Zoox self-driving unit, which opened rides to the public in some parts of Las Vegas and San Francisco last year.