None of those examples relate to the usage that's being talked about. "Rice Burner" came into wide use in the 80s as a disparaging term for Japanese cars, and was especially popular with fans of American muscle cars. The implication is that they literally use rice as fuel instead of gasoline because rice is a stereotypical staple in Asian diets. Definitely started as an insult, and pretty similarly racist to linking black people and fried chicken and watermelon. At this point it's become such common usage that it might be headed in the direction of "Paddy Wagon" (a slur referring to lawlessness among Irish immigrants), meaning that the original disparaging intent and meaning is becoming forgotten and use is fairly mainstream.