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After supplying batteries for the record-breaking Mira EV (pictured), Sanyo had little choice but to follow it up with something big. So that's just what they did. This time around, the project is more about future plans than 300-plus mile journeys, but the goal is still quite monumental. Sanyo will invest $2.1 billion to ramp up li-ion production for hybrid and electric vehicles in anticipation of reaching mass production levels by 2012.

2010 Toyota Prius - Click above for high-res image gallery