There sure are a lot of misconstrued ideas floating about...
The difference between an SVT & non-SVT are extremely numerous. Even beyond the 20+ things different under the hood alone.
All performance aspects are in the SVT's favor as well.
Also those that think the SVT is considerably heavier than a non-SVT are again mistaken.
Both cars weigh right around 3000lbs.
I won't even get into that autocross debate, because 75% of your times is skill related. I've seen a good driver in a mid 80's Dodge 600 (bone stock including tires!) turn lap times with in a few seconds of the STS guys! (~40 second course)