No, no, the mustangs can be ricers too, as in this case, any car can be. And ricer is typically used for car with unnecessarily large and useless body kits, wings, neon, and other stuff of the like. It is a racially derived word, beginning as “rice burner” referring to Japanese cars, in a sense making fun of asians.
On a note, one can drive a japanese car and not be a “ricer” by today’s meaning.

Awesome hedgehog hair. Could never get mine to look that dangerous and spiky.

Ricer is what you call Asian cars and motorbikes that are all done up. It’s a negative term though since you’re basically saying “oh those are the cars those rice dick motherfuckers like to drive”

That’s what it means: rice dick. Cause Asians eat a lot of rice and have tiny wieners.