They actually did, but they filled the trunks with concrete to level them out in flight.
Here's a jump the Duke boys would've been proud of, in what appears to be an unmodified Buick LeSabre.
https://www.youtube.com/watch?v=5kMTHwjy6Z8
alt Hacker News
Here's a jump the Duke boys would've been proud of, in what appears to be an unmodified Buick LeSabre.
https://www.youtube.com/watch?v=5kMTHwjy6Z8