Mercedes has decided to take a break from pushing their diesel technology on green buyers and released an all new BlueHybrid series car.  The Mercedes S400 BlueHybrid is a radically engineered 'green' car capable of close to 300 horsepower and still get 29 miles per gallong.  Thanks to the use of their 'Blue' technology, Mercedes is able to mount a battery in the engine bay only slightly larger than it's regular 12v battery, instead of a heavy lithium under carriage mount unit.

Mercedes BlueHybrid