Originally Posted by
Chugach
I'll just chime in with the others. The Denali Highway is far from a "highway". It's a dirt road, not maintained in winter, and very primitive. Doing it in a rented Toyota Corolla is foolhardy at best.
As far as I know, Alaska is in the northern hemisphere, where it is summer during July and August, the months of OP's proposed travel.
This is Alaska State Highway Route 6. Not that long ago, many state and provincial highways in Alaska and the Yukon were unpaved. Before 1971, people routinely drove to McKinley Park on this highway. Routine driving on unpaved roads at slow speeds does not cause vehicle damage. Most flat tires occur on paved roads.