For the three vehicles I have, 2004 Subaru, 1992 Nissan 240sx, and 1986 Toy pickup, it's about $850/6mo.
Michigan is a no-fault policy state (they charge more)
Both cars have full coverage (I drive the 240 daily, between job sites too) truck is just liability.
My wife and I are just over 30, no accidents.
For comparison, if we lived in Indiana, cost would be about 1/2.

1986 Pickup extracab longbed "Woody edition"
SAS - 33's, 5.29's, lockright rear.

02 IS300 SportCross - my "DD"
94 2wd v6 extracab
04 Outback Wagon- wife's/family car