Has anyone been to the smoky mountains in tennessee? We're you able to drive your car through the mountains rather than renting an suv?

Ky 8-15-17👼🏼 & 10-28-17👼🏼 Pregnant with my🌈💕
My wedding is this Saturday and we were taking our honeymoon to the Tennessee smoky mountains on monday and staying in a cabin that we rented. My fiances truck just broke the other day which we planned on taking there so it has to be fixed. The only other vehicle we have is my Chevy cobalt car. I really don't want to spend $700 on renting an suv to go there. That's money we could use on something els. Are you able to get through the mountains with a car? Or do you have to have an suv?