SMART car isn't a new term. These cars are in fact the fifth generation SMART car. The first ones were the VX SS that were those gold ones.
You're referring to the ICV (In Car Video) system? It's a brand new system that's just being rolled out after being trialled. It's not being introduced into every car I don't think as it does suck a bit of power, which is why these cars are fitted with the dual battery.
In case you didn't realise, we do have a few toys that need to be powered, such as laser, mobile data terminal, radio, mobile radar and some members (like me) have their own GPS unit they plug in. So with the ICV thrown in on top it was found that there wasn't enough power to go around, easily solved by a dual battery system.