I thought the article addressed all of that. Realistic meant it is on an existing platform, not futuristic.
"... And today at the Los Angeles Auto Show, Volvo has revealed just that: Concept 26 is an autonomous driving, four-door sedan interior designed to be built on top of Volvo’s existing SPA platform. In other words, with very few adjustments to the way Volvo designs and builds cars, Concept 26 could feasibly hit the road when Volvo starts testing autonomous vehicles in 2017... In turn, Concept 26 has three modes: Drive, Create, and Relax. In Drive, you sit at the steering wheel like any other vehicle. In Create, the driver’s seat kicks back a bit, a tray table folds out, and you can either work on your laptop, or watch a screen that appears on the front passenger’s dashboard. Then in Relax, the entire front seat leans way back, complete with support for your feet."