Toyota reportedly has a Prius sports wagon or SUV in works, according to Japanese newspaper Yomiuri . The SUV has been rumored to be on paper ever since the Toyota Hybrid X Concept was unveiled at the 2007 Geneva Motor Show. There’s not much going on for now in terms of official details, but we’ll have to speculate that the new models will incorporate a regenerative braking system or a solar roof option. More to it, a plug-in version is also rumored to be in the works, but given the fact that Toyota has failed to comment on any of these, we can only assume that next years motor shows in Europe and in Detroit, in the US, will shred some light. [via Edmunds]