Ugh.. why a large size sedan?? Anyone who buys one of these thinking they're saving the Earth suffers from cognitive dissonance.
This car is not the future. We really should all be driving small, super-efficient, "SmartCar" sized electric golf-cart cars. They should be under $10,000, have 200+ mi range. A large luxury sedan built for the rich is not going to make one lick of difference in terms of pollution or fossil fuel conservation.