How can the soaring price of gas possibly be a good thing? When it can lower your auto insurance rates.

According to analysis released Tuesday by the Consumer Federation of America, people who are driving fewer miles to save gas could also save between 5 and 15 percent on their car insurance, or about $47 to $142 a year.

Auto rates are partially based on how much you drive, said J. Robert Hunter, director of insurance for the CFA. "If you drive less to save money on gas, that might mean you qualify for immediate insurance rate relief," Hunter said, adding that car owners should call their insurance company or agent and ask if they qualify.

Chris Neal, a spokesman for State Farm, Florida's largest auto insurer, agreed with Hunter.

"The number of miles driven is one of many factors used, and if someone's situation has changed, they should contact their agent and make sure they are getting every benefit they can.''