Re: Question for the WRX guys....
I'm not certain what it stands for. I'd guess, though, that it stands for something like World Rally X (cross). The car line was purpose-built by Subaru for the WRC effort, and has been around since the early 90s. It refers to any WRX (as opposed to the Impreza, the Impreza RS).
The full model name is Subaru Impreza WRX. There's also of course the Subaru Impreza WRX STi, which is the yet-higher performance version of the WRX, simply known as the 'STi' for short.
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