Japanese Street Food vs. Thai Street Food

When walking on the streets of Japan, once a while, one would come across a few street vendor carts.

While in the streets of Bangkok, one would see street food vendor carts at almost every street corner or sidewalk. 

Japanese Street Foods are clean, sushi type, while Bangkok Street Food are Spicy and colorful.  K C Yee likes both, the best combination would to have both in the same city, but Japan and Thailand is far apart, 4 hours by flight.