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Diesel joins Porsche Panamera lineup

Porsche has put forward some eye-catching fuel-economy figures for the Panamera diesel--although we may never see the car in the United States. Set to go on sale across Europe in August, the four-door is claimed to return a combined city/highway driving fuel economy of 36.2 mpg in standard guise under European testing procedures. When fitted with optional low-rolling-resistance tires, the fuel economy climbs to 37.3 mpg on the European test--a figure that gives the Panamera diesel a theoretical range of 800 miles on its 21-gallon fuel tank.

New Nissan Altima guns for bigger slice of midsize-sedan segment

Nissan North America has launched production in Tennessee of the redesigned 2013 Altima sedan that it hopes will challenge the family-sedan supremacy of the Toyota Camry. "We didn't put all of the investment into this product and put in all the features with an expectation to be No. 2," said Bill Krueger, vice chairman of Nissan Americas, after the first 2013 model rolled off the line in Smyrna, Tenn., on May 15.

2010 Lotus Evora to start at $74,675

The 2010 Lotus Evora will start at $74,675 when it arrives in the United States in the first part of next year. The exotic mid-engine 2+2 sports car is powered by a 3.5-liter V6 rated at 276 hp and 258 lb-ft of torque. It rips from 0 to 60 mph in 4.9 seconds and tops out at 162 mph.