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Honda launches heritage-collection clothing line

If a Honda Accord or Civic, or maybe even a Goldwing motorcycle, isn't enough of a fashion statement for you, Honda has a new line of clothes rolling out this spring. The Honda Heritage Clothing Collection debuted with a launch party and fashion show this week in Los Angeles. Capitalizing on the vintage T-shirt trend, Honda's new collection includes tees, shop shirts, shrunken sweatshirts and tote bags branded with graphics inspired by the carmaker's logos and advertising campaigns of the 1960s, '70s and '80s.

Porsche plans four-door Panamera convertible

A series of European and U.S. patent applications obtained by AutoWeek show that Porsche remains committed to building a four-door convertible version of its flagship Panamera, despite recent comments from Zuffenhausen insiders indicating the car had been canceled. The new car, depicted in official drawings that accompany the latest Porsche patent applications filed in February, eschews the two-door route taken by all of its upmarket rivals for a four-door body.

Nissan Leaf gets battery warranty boost

Nissan Motor Co. plans to bolster the warranty of the battery module in its electric Leaf to reassure consumers of its durability. The company intends to notify current owners and dealers early next year that it will make the warranty retroactive to cover all existing Leafs, offering to repair or replace the car’s lithium-ion battery if it loses more than 30 percent of its ability to hold a charge after five years or 60,000 miles.