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This is the most fuel-efficient pickup in America

The 2014 diesel-powered Ram 1500 pickup gets 28 mpg on the highway, the top rating for any pickup in the United States. The mileage ratings were announced today on the EPA's www.fueleconomy.gov Web site. The Ram 1500 EcoDiesel is rated at 20 mpg in the city and 23 mpg combined city and highway.

2014 Nissan Leaf pricing announced

Nissan has announced pricing for its pure-electric Leaf, which seems to be growing more popular by the hour. This time last year Nissan slashed the price of the Leaf by a whopping $6,000, sending into the sub-$30K territory, and for 2014 the price and equipment list has barely changed. The Leaf's driving range remains at 84 miles on a full charge, and the mpg-equivalent ratings stay at 126 mpge in the city and 101 mpge on the highway, for a combined rating of 114.

Hyundai revises fuel-economy numbers downward again

Hyundai revamped its fuel numbers on its Sonata sedan on March 4, and on Monday it issued an apology for misleading buyers. This is the second time in two years the company has needed to make amends for false numbers. Hyundai said the original number on its Sonata was 12.6 km per liter, which translates to 29.6 mpg.