The this spring Prius , due 2010 , will have an optional solar panel on its roof . The panel will power a cooling system without help from the engine . 929 company also makes a roof-mounted solar panel for current Prius models . But it 's a long way from the new Toyota Prius to a solar-powered car , experts say .
The 2010 Toyota Prius , due this spring , will have an optional solar panel on its roof . The panel will power a cooling system without help from the engine . One company also makes a roof-mounted solar panel for current Prius models . But it 's a long way from the new Prius to a solar-powered car , experts say .