from Yanko Design:
At the tops of the towers are urban wind power generators. On top of each of the train cars are solar power generators. The interiors of the cars are mostly open, with seats along the sides to conserve space.
The seats inside the cars are made of Corian which is both strong and easy to clean. OLED panels, touch screen interfaces, Wi-Fi internet, headphone jacks, Bluetooth, information boards, interactivity galore!