To add to what
Famine said.
We have seen "rice" on Fords, Chevies, Dodges, and a wide variety of non-japanese cars.
Rice is an
ATTITUDE. It is represented by people of little intelligence doing things to cars that really shouldn't be done.
It includes, but is not limited to, modifications that are cosmetic in nature, and do not add to the overall functionality of the vehicle.
This may occur in a "non-rice" auto. But to some people, what they think is "pretty" is "functional" to them.
There is also the "attitude" that I mentioned. To borrow from Jeff Foxworthy (with apologies):
If you are driving a car that has had more spent on paint and body mods, than you spent on the car...you might be a ricer
If you have a stereo, that is louder than the Concorde, and you roll thru my neighborhood with it cranked, windows breaking from the volume, and blood running out of your ears...you might be a ricer.
If the wing on your car is so big that your front wheels leave the pavement not from downforce, but the sheer
weight of the thing...you might be a ricer.
If you have "type-R" or "GT-R" emblems on any car that isn't an Integra, Civic Type-R, or Skyline, and you're dumb enough to think that's cool...you might be a ricer.
If you cop an attitude, and wanna throw down because someone insulted your car, but have no issues with some fool that disses your girl...you might be a ricer. (and now your girl doesn't respect you either).
If you have a DVD player/game system in your car that is visible from the driver's seat, and you try to use it while the car is in motion...you are an idiot, and you might be a ricer.
I hope that clears some things up for you. For me at least, I associate the term "ricer" with stupidity and rudeness.
If you choose for some reason to put a wing on a Focus the size of a picnic table, but you are considerate, and otherwise prove to be intelligent, You might get a

. But you will otherwise be considered, non-rice.