How soon can you buy one? Sale dates from automakers:

Volvo: 2021

Volvo’s “unsupervised autonomous vehicles” are expected to hit the market by 2021. This year, as part of its Drive Me program, 100 self-driving Volvos will roll out onto Swedish streets and not be handled by engineers but regular people. Until then, the 2017 Volvo S90 includes the second-generation of Pilot Assist, which takes over driving duties at speeds of up to 80 mph, keeps a set distance between cars and offers automatic braking at intersections. Drivers must still sit in the driver’s seat and touch the steering wheel frequently

General Motors: No date yet

The automaker said it would begin producing a test fleet of Bolt EVs with full autonomous power this year at its plant in Orion Township, Mich. GM, which invested $500 million in Lyft to build a AV network, is already testing driverless cars in California and Arizona. Until then, a number of its brands do offer semi-autonomous features on some models, including the Cadillac CT6.

Audi: 2020

Targets 2020 for its first automated vehicle to hit the market. This year, the Audi A8 will offer Traffic Jam Pilot, a feature meant for self-driving during sluggish traffic jams. The car takes over steering, gas and brakes if speeds are slower than 35 mph. Until then, the 2017 Audi A4 and Q7 offer Traffic Jam Assist. Drivers can be hands-off and let the car take over in rush hour, but they must touch the steering wheel every 15 seconds.

Ford: 2021

Ford expects to start mass production of driverless cars in 2021. The intention is for ride-hailing or ride-sharing services, and the cars won’t have steering wheels. The company has invested or acquired companies that develop LiDAR, machine vision and 3-D mapping. In February, it invested $1 billion in Argo AI for robotics and artificial intelligence. It has also expanded its Silicon Valley operations to take advantage of more than 40 startups working in the mobility space. The company is currently testing at least 30 self-driving Ford Fusion Hybrids in California, Arizona and Michigan. Until then, Ford offers driver assist features in its F-150 truck and other vehicles that decelerate the car around a curb or help out with parallel parking.