Akihiko Otsuka, (L) chief engineer and Bob Carter, group vice president and general manager of Toyota are photographed by a circle of media after the third-generation 2010 Toyota Prius hybrid made its world debut at the North American International Auto Show, Monday January 12, 2009. Rated at 50-miles-per-gallon, the new Prius extends its record of continuous improvement in fuel economy.

Akihiko Otsuka, (R) chief engineer and Bob Carter, group vice president and general manager of Toyota after the third-generation 2010 Toyota Prius hybrid made its world debut at the North American International Auto Show, Monday January 12, 2009. Rated at 50-miles-per-gallon, the new Prius extends its record of continuous improvement in fuel economy.

Bob Carter, group vice president and general manager of Toyota answers questions after the third-generation 2010 Toyota Prius hybrid vehicle made its world debut at the North American International Auto Show, Monday January 12, 2009. Rated at 50-miles-per-gallon, the new Prius extends its record of continuous improvement in fuel economy.

Bob Carter, group vice president and general manager of Toyota introduces the third-generation 2010 Toyota Prius hybrid vehicle as it makes its world debut at the North American International Auto Show, Monday January 12, 2009. Rated at 50-miles-per-gallon, the new Prius extends its record of continuous improvement in fuel economy.

Akihiko Otsuka, (L) chief engineer and Bob Carter, group vice president and general manager of Toyota after the third-generation 2010 Toyota Prius hybrid made its world debut at the North American International Auto Show, Monday January 12, 2009. Rated at 50-miles-per-gallon, the new Prius extends its record of continuous improvement in fuel economy.