Walmart plans autonomous delivery service in Austin, Miami and Washington D.C.

Walmart Inc. has been fishing around in the autonomous car space for years. Now, it's gearing up to test autonomous delivery service in Austin, Miami and Washington, D.C. While it's a relatively small rollout, planned for select parts of the three cities, the testing will help pave the way for future autonomous delivery services. The cars, which are Ford vehicles equipped with Argo AI autonomous systems, will have safety drivers at the wheel ready to take over as needed, as well as report any findings…