DETROIT — The Chevrolet Volt has been chosen as the 2011 North American Car of the Year and the Ford Explorer as the 2011 North American Truck of the Year.

The winners were revealed Monday during a news conference at the North American International Auto Show in Detroit.

While hybrid vehicles have won four times in the 18 years the awards have been given, this was the first win for a vehicle that can move a meaningful distance on electric power alone.

The North American Car and Truck of the Year awards are designed to recognize the most outstanding new vehicles of the year that set benchmarks in their segments in areas including innovation, design, safety, handling, driver satisfaction and value for the dollar. To be eligible for consideration, a vehicle must be all-new or "substantially changed."

The winners were chosen by a jury of 49 automotive journalists from the United States and Canada. The awards are administered by a five-person organizing committee. This year, the committee included Karl Brauer (Edmunds.com); Tony Swan (Car and Driver); Lindsay Brooke (Automotive Engineering International); Mark Phelan (The Detroit Free Press) and Christopher Jensen (Freelance).

This is the fourth time General Motors has won the North American Car of the Year. Most recently, the Chevrolet Malibu was the 2008 North American Car of the Year.

This was the second year in a row that a Ford was named the North American Truck of the Year. Last year, the winner was the Transit Connect. It is also the seventh time a Ford has been the "North American Truck of the Year," a category it has dominated.

The Volt won with 233 points followed by the Hyundai Sonata with 163 and the Nissan Leaf electric with 94. The Explorer won with 253 points while the Jeep had 138 and the Durango 99.

"The Volt seamlessly bridges the gulf between today’s liquid fueling infrastructure and the plugged-in electric future," said juror Lindsay Brooke of Automotive Engineering International.

Mark Phelan, auto critic for The Detroit Free Press, said the Explorer offers "class-leading fuel economy and technology and features you can’t get in luxury crossovers that cost twice as much."

During the 18 years of the awards, Domestic automakers have won North American Car of the Year 10 times. European automakers have won four times, Japanese automakers have won three times. A Korean automaker has won once.

Domestic automakers have won North American Truck of the Year 12 times. Japanese automakers have won four times. European automakers have won twice.

Last year, the North American Car of the Year was the Ford Fusion Hybrid and the North American Truck of the Year was the Ford Transit Connect.