RICE - A well-known cereal grass (Oryza sativa) and its seed. This plant is extensively cultivated in warm climates, and the grain forms a large portion of the food of the inhabitants.

Semi-seriously speaking, here are a variety of RICE definitions:

1) An automobile, generally of import classification, that is souped up and characterized by use of stickers and decals that do not match any manufacturer of the car, spoilers that look like airplane landing gear, and hideous paintjobs and fart cans. See also rice rocket.

2) Any cheap car, especially Asian, that has been "upgraded" with after-market parts(exaust, body kits, nitrous, spoilers, speakers, lights, etc...)in an attempt to make it faster and/or "pimpin".

In reality, instead of making a car better, "ricing it up" makes it utterly and completely gay. Rice cars are easily beaten in races by American and European sports cars. Also, anyone who owns a rice car is looked down upon and seen as shameful by non-ricers. Rice cars are typically driven by young lower and middle class Asians, Hispanics, whiteboys and even some African Americans.

3) a Rice car is used to refer to sports cars of Asian make who have heavily cosmetic modifications and little or no internal modifications.

RICE - stands for Race Inspired Cosmetic Enhancement.

Commonly misunderstood by people who believe any asian 'done up' sports car is a rice mobile, and used as a negative term.

4) A term that Americans use to describe Superior performance asian cars out of jealousy. These cars are products of Honda, Toyota, Subaru, Nissan, Mitsubishi, Lexus, and Acura. Jealousy comes from the superior looks, engine, reliability, street cred, luxury in which American cars are clearly inferior to. These cars are driven by any class of people. Some of these cars may be heavily modified for looks, performance, or both.
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Source: What is RICE?[/SIZE]