Dragon Ball (Official Colored) - Vol. 18 Ch. 207 - Son Gohan Grieves

[MangaDex]

 

[Menace23]

Man Toriyama loves drawing cars.

 

[shukketsu76]

Man Toriyama loves drawing cars.

Ah i remember him mentioning that he liked to draw cars that he saw

 

[Omb74]

"The Saiyans will be here in a year, we don't have time for your whining! Okay, I'll see you in six months."

This has always bothered me about this arc. I feel like Piccolo wasted half their training time leaving Gohan alone.
I get why he did it, but I feel like he could've gotten the same results in half the time, if not a month, if he'd just coached Gohan.