Carmakers from around the world will converge on Detroit this week for the annual North American International Auto Show (NAIAS) to exhibit their newest products. On display will be everything from production vehicles that can be purchased today to concepts that won't be on the showroom floor for years to come. Most of this year's exhibitors have at least one thing in common, they will be debuting and displaying the newest developments in clean, green vehicles.

"The trends are showing that there will be a great emphasis this year on fuel-efficient vehicles, as well alternative technologies in powertrain." --Joe Serra, Co-Chairman, NAIAS 2008