Yesterday, I visited my relative living in Osaka by car.
It was 1,000km two ways (500km distance between Yokohama to Osaka) a day !
My car is very small, only 660 cc.
I took 8 hours for going and 6.5 hours for comming back.
Only stayed 2.5 hours in Osaka.
I left my home (Yokohama) at AM6:15 and arrived PM14:30.
And left Osaka at 17:00 and arrived Yokohama at 23:30
My wife and daughter were with me for this trip, they were also so tired.