Try some of the roads up to and around Galena, Illinois. If you go on a Sunday you'll find them pretty deserted. Lots of hills and twisties on glass smooth roads. Fun enough that when you get done with one section you'll want to turn around and do it again!
Try the Sunday brunch at Eagle Ridge Resort. Eleven dollars will get you all the GREAT food you can eat. Premium gas is also about 40 cents cheaper than the Chicago area.
Just take I-88 west and then go north on Route 78 to Elizabeth Route. Follow that north and west. Take any of the highways around there for some roller coaster like driving.