I've driven that road with a car
. Wide open, nice road. But it's been a few years. Just want to mention: don't pass up Mackinac Island!! Must see for Michigan. There's parking at the Ferries and you go over by indoor/outdoor ferries. No motorized vehicles. Walk about or rent a bike on the island. Very victorian, charming, and lots of famous Mackinac Island Fudge....Intense views of the Great Lakes, Mackinac Bridge, large ships, etc. etc.
Here's a link to my favorite CG up there: