Toyota aims to resolve a problem with unintended acceleration that has stripped some of the luster off the carmaker?s reputation for reliability.

  The fate of the Swedish automaker rests with the G.M. board after the buyer backed out of the deal on Tuesday.

  We asked readers to send us any questions they had about the Chevrolet Volt hybrid car.

  BMW has positioned the new 5 Series more upscale. Based on the 7 Series chassis, the 5-Series lineup will be bigger and heavier.

  The X6 M crossover makes no pretensions of carrying soccer teams or fording rivers. Fun is its raison d?être.

  Could it now be time for the lowly differential ?a vital drivetrain part seen by few drivers and understood by even fewer ?to shine?

  A reporter test-drove a Chevrolet Volt to see how it performed after its electric power supply was depleted.

  The demands of aerodynamics and interior space are reshaping the silhouettes of new cars in a way that recalls the fastback designs of decades past.

  At the Simeone Foundation Museum, the sports cars in the collection are displayed ?in motion ?on the fourth Saturday of each month.

  An influx of faulty Chinese-made all-terrain vehicles is challenging the Consumer Product Safety Commission.

  General Motors has revealed images of the new 2011 Cadillac CTS Coupe ahead of its public introduction at the Los Angeles auto show next week.

  Which is safer: technology that disables a cellphone in a moving car, or that makes the conversation completely hands-free?

  As of Thursday, 193 people have taken General Motors up on its 60-day money-back guarantee. G.M. plans on interviewing them to find out why.

  The U.S. takeover of G.M. and Chrysler isn?t an unqualified success, but rising auto prices may be more than a statistical fluke.