You should bounce from Alabama to Mississippi, night and day difference, which is funny because Americans lump the two states together.
We drive hundreds and hundreds of miles a year through backwoods Alabama highways, thence into Mississippi. There is one short stretch where the road is messed up. Going into Mississippi, the road turns to crap instantly, even the US highways are somehow underfunded.
Gas stations in AL are neat enough, in MS there's trash flying around everywhere. For that matter, you can tell by the small towns. Alabama side? Generally charming, though poverty is bad. Pass into Mississippi? Next town you come to will be a wasteland of poverty and ground down infrastructure.
Forest drops quickly in favor of farmland. AL is the most forested state in America. MS countryside looks more like Oklahoma.
Going from Florida into Alabama, you really can't tell without a sign, and there usually is one, or Google Maps announces it. The landscape and forests don't change until you've gone a ways north or west. Takes awhile to start seeing hills! Florida's the flattest state in America.