why does speed racer have a g on his shirt? What does it stand for?

[Dodrio]

why does speed racer have the letter "g" on his shirt? What does it stand for?

[Motor]

Casually, he wears a blue shirt with a yellow "G" (standing for his Japanese first name, Gō) that sports a white collar, a red racing bandanna around his neck, white pants, red socks, brown loafers and yellow gloves. He has a brown Elvis pompadour hairstyle. In racing, he sports a white open-face helmet with an M (representing Mifune Motors) flashed on top. On special occasions, Speed wears a red blazer with a yellow "G" embroidered on. This only happens in the anime. In the manga, he wears his standard outfit on special occasions. In the live action film, he wears a white leather racing jacket unzipped and over his classic outfit, and white pants. He wears his classic outfit (without the embroidered "G") in the first half of the Casa Cristo 5000. To strengthen character backstory between Speed and his older brother Rex, Speed's red socks were considered "lucky socks".

Speed Racer - Wikipedia, the free encyclopedia