Safety unit probes Fisker plug-in car fire

U.S. safety regulators are trying to determine the cause of a Texas garage fire that destroyed three vehicles, including a luxury plug-in sports car built by Fisker Automotive. The Fisker Karma, which sells for more than $100,000, was parked in the garage of a newly built home in Sugar Land, Texas, when the fire broke out earlier this month. The National Highway Traffic Safety Administration sent investigators to inspect the site, but has not yet opened a formal investigation.