I've got a Class A CDL. I haven't used it in many years but hang onto it. I never went to truck driving school but learned to drive the old fashioned way, back before such schools existed. I got it after I got out of the military so that I could save up enough cash to quit work and finish my degree while going to school full time. I once drove over 70,000 miles in 3 months. That's damn near 6,000 miles a week.
An unexpected side effect was that I could not back up in a car without a trailer. I looked like a complete idiot trying to back into a parking space. There were times that I'd have to relinquish the driver's seat to the wife because I simply couldn't back up. I kept turning the wrong way and truly felt like a moron. Oddly, it didn't affect how I rode a motorcycle. It's just too much difference between the two for one to affect the other so my motorcycle became my transportation of choice.
Longest I've ridden my bike at one shot was around 1400 miles in 19.5 hours. An old Navy buddy was having a 4th of July party and I didn't want to miss it. I have no idea how fast I was going because my speedometer broke about 2 hours into the trip. All I know for sure is that no one passed me.
I'm too old now, but I always wanted to try to do that run from Prudhoe Bay, Alaska to Key West, Florida on my bike. Last I knew, the record was somewhere around 86 hours. I'm pretty sure that back in the day I could've easily done that. Just turn the bike into a rolling gas can and ride like Hell!