Used Cars Online

That demand was for fuel-efficient advances in cars and trucks . And this year’s Seattle Auto Show, which opens Wednesday at Qwest Field Event Center, will feature a wide variety of “green” innovations appearing for the first time. For example: … The stylish plug-in hybrid — produced by Henrik Fisker, a former design director at Aston Martin — can achieve 100 mpg, and drivers who commute fewer than 50 miles per day will need to fill the gas tank only once a year. …