May 12, 2011 4:47 PM ET

Wheelies: The Pipeline Edition

A new filling station in Torrance, Calif., dispenses hydrogen from a pipeline instead of from on-site tanks.

May 12, 2011 1:30 PM ET

With Financing in Flux, Saab's First E.V. Program Awaits Its Fate

The Saab ePower, a purely electric version of the 9-3 SportCombi wagon unveiled at the Paris auto show, is a bright spot for the imperiled brand.

May 12, 2011 12:41 PM ET

Chrysler Exports 'Imported From Detroit' to New York

The campaign, initially featuring a Chrysler 200, Eminem and Detroit, now includes a Chrysler 300, the fashion designer John Varvatos and Manhattan.

From the Automobiles Section

Behind the Wheel | 2011 Chrysler 300

The Gangster Gets Rehabilitated

By JERRY GARRETT

RETAILORED The 2011 Chrysler 300 has been restyled and now has a refined, soft-shouldered look.

When the Chrysler 300 swaggered into the full-size sedan market in 2004, it helped the company stay in business. Now the car has been redesigned to look less Chrysler, more upscale and less menacing.

Slide Show: A More Refined 300

HELPING OUT An electric Mitsubishi i-MiEV in a tsunami-wrecked area of Iwate Prefecture.

After Disaster Hit Japan, Electric Cars Stepped Up

By KEN BELSON

With oil refineries out of commission and clogged roads slowing gasoline deliveries, Japan turned to electric cars to help provide needed services.

Design

Designing Successful Sequel Is Exercise in Restraint

By PHIL PATTON

Producing a sequel to a star car, like the Mercedes-Benz CLS, is a formidable task for a designer, but updating already updated cars may be the hardest task of all.

Greentech

COMING ATTRACTION Elon Musk, Tesla chief executive, unveiling the Tesla factory in California last fall.

Tesla Prepares for a Gap as Roadster Winds Down

By JOSIE GARTHWAITE

Tesla Motors is hitting pause on its main moneymaker, the Roadster, saying it will stop selling the current version of the electric car perhaps early next year.

After Quake, Toyota’s Profit Plummets 77%

By NICK BUNKLEY

The carmaker, whose operations have been severely disrupted since the earthquake and tsunami in Japan, said that it expects production to begin recovering sooner than forecast.

G.M. to Spend $2 Billion in Hiring and to Upgrade U.S. Plants

By BILL VLASIC

The company said its plans to upgrade 17 plants in eight states would create or save more than 4,000 jobs.

Amp Delivers Its First Electric Mercedes-Benz ML Conversion

By JONATHAN SCHULTZ

The S.U.V. was collected Wednesday by Gisli Gislason, chairman and chief executive of Northern Lights Energy, an Icelandic utility and Amp's largest customer.

Practical Traveler

13 Ways to Save on Gas this Summer

By MICHELLE HIGGINS

High fuel prices are driving up the cost of road trips, but there are ways to fight back.

Troubles at Saab Continue As Chinese Deal Collapses

By MATTHEW SALTMARSH and DAVID JOLLY

The Swedish car company said a partnership announced just over a week ago with the Hawtai Motor Group had foundered, although new talks are under way.