Sure, we have heard word of lithium ion batteries being possibly implemented in a Prius before, but Mercedes-Benz is going beyond concept speculation with its S400 BlueHybrid, which promises Li-ion HEV action to be hitting the production lines by 2009. At present, that makes the S400 BlueHybrid the first Li-ion HEV with a set mass-production time frame.
Tesla plans to enter the gas-electric hybrid market, with the first range extended vehicle (REV) to hit the streets by the end of 2009. Their all electric models negate the use for a gas motor entirely, but by adding a gas motor they will be able to produce hybrid vehicles with better performance.
