580km in 7 hours = (converting to imperial) an average of 50mph. Speed up. I've done central Scotland to Dover (500 miles) in 6 hours, an average of 80mph.
Why do you detest driving?
Which charges you no doubt.
I want to be somewhere on my schedule, not the airline's.
Why work harder so you can pay for unnecessary things?
I might be visiting a relative and have some big things to give to them. Or I might have a large tent with me.
Anything I like?
No, I just dismissed your point effectively.