Volvo is now engaging Swedish families to participate as beta testers for its public autonomous driving program, Drive Me.

In a partnership between Volvo, the Swedish Transport Administration, a separate transport agency, and smaller entities, Volvo delivered two XC90 SUVs to two families, the Hains and the Simonovskis, in Gothenburg, Sweden. They are the beginning of Volvo’s program aiming for 100 Drive Me beta cars on the road, and have agreed to provide first-hand feedback on their experiences with the vehicle, where the goal is to replicate daily driving in everyday conditions, including 31 miles of designated roads.

According to Volvo’s Drive Me website, hundreds of terabytes of data will be collected on safety, user experience, traffic flow, fuel savings, and driving behaviors to be reviewed by its experts.

“Drive Me is an important research project for Volvo Cars,” said Henrik Green, senior vice president of research and development at Volvo. “We expect to learn a lot from engaging these families and will use their experiences to shape the development of our autonomous driving technology, so that by 2021 we can offer our customers a fully autonomous car.”

To start, a traditional XC90 will come equipped with sensors and cameras, along with driver-assistance features such as lane departure warning and dynamic cruise control. Drivers will be expected to keep hands on the steering wheel to avoid an audible alert. Over time, program participants will escalate to higher level classification autonomous vehicles with more advanced assist features, with Volvo’s safety specialists onboard.

Other players involved in Volvo’s quest for autonomous vehicles including Uber and Swedish automotive safety systems supplier Autoliv, collaborations meant to drive hardware and software production. A separate venture with Autoliv will also work on software licensing under a new name.

The goal is to deliver up to 100 self-driving prototypes to Swedish customers over the next four years before expansion plans to the United Kingdom, Sweden, and China by 2018.