Actually, I think it was a stock, plain old Coupe or Sedan DeVille that actually won the first one - I remember reading the article in C&D (I had a sub from the mid-60s to the late 80s). They ascribed the first place finish to the fact that the Caddy blended in with the rest of the scenery, and even if it didn't have the spot top-speed of the more exotic cars, it never got ticketed either. A big gas tank and plenty of room in the back to throw the food garbage helped, if I recall.
We're talkin' about '69 or '70 or so here, I think...if I remember......
Oh, and back on topic - We're up for anything in the S. Jersey/Delaware Valley area - Since I lived outside of AC for about 15 years, I know my way around there..not that there's much to know - but there are some nice areas within ten or so miles that your typical visitor doesn't know about....