Even the WRX? I'm thinking of who I know that has bought a WRX new, and two of the three are engineers who some form of car racing....
On a clean dry pavement track, its maybe not the greatest car, but for a DD with AWD, its pretty good and on gravel or snow, or a wet autocross day its great.
Also the NVH on this new WRX should be a lot better as its using a similar structure to the Legacy and Outback.
I think on equal tires, you would have your hands full with the N-line Elantra on any track? There was one at autocross last time and it was quite impressive for a bone stock car.