The Rolls-Royce 102EX, an experimental plug-in electric version of the Phantom ultra-luxury sedan, boasts what Rolls says is the biggest battery in any electric car. It had better to be to move something as massive as the Phantom with any kind of grace.
Unfortunately, Rolls-Royce said it will not actually produce the Phantom. Apparently, Rolls said there weren't enough rich folks willing to buy it.
Still, the fact that Rolls was even looking at such a thing is good news for electric car fans.