After being with State Farm for over 25+ years I switched to Geico this past week. My 6 month car insurance premium went from $545 with State Farm to $274 with Geico. I'm 44, single, accident-free, clean driving record. Got a quote from Liberty Mutual as well but they quoted the same price that I had with State Farm.
Not sure how Geico can be that much cheaper, but I'm not complaining! Searched the forums here and found many that seem to be happy with Geico.
2009 E90 335i xDrive / Monaco Blue / Beige / 6-speed Manual / Premium / Sport / Cold / iDrive / iPod