Re: I know a few people who put in their orders.
"A plane might be a better option..."
The crossover point, considering door-to-door, is actually about a 6-hour drive.
There have been quite a few tests, demonstrations, races, etc. to document this finding.
YMMV, and there's a distribution of variation on this rough figure. Smaller airports at each end might be faster than huge huge airports. Taxi cab saves time compared to rental. Many variables.
And of course, if you're using an electric car, forget it. Unless there are optimally-located fast chargers along the route. Charging time makes six into five.