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1988 Honda Accord LX-i
~$260/6 months
Of course, that's just my daily driver, it costs me $128/month to insure my 1976 Porsche 914 during the sumer, but only $15/month during winter storage. I get insurance through State Farm and they only require that I carry the "youthful" (read: expensive) coverage on one car, which is the Porsche. Because of that, insurance on the Accord is no more for me than it would be for a middle aged guy. Also, because the Porsche is stored all winter, it is cheaper for me to insure both the Porsche and the Honda than it was to insure just the Honda. (Honda used to be ~$675/6 months.)
Zenmervolt
EDIT: All insurance is comprehensive, except for the storage insurance on the Porsche in winter.