I didn't have a Shaggin' Wagon, but my first car (really it was my dad's car, but I'm the only one who ever drove it) was a 1977 Ford Pinto Cruising Wagon, silver with racing stripes, a fishbowl window in the back, red shag carpeting and a fake rubber spoiler under the front bumper. She was the Sara Lee (as opposed to the General Lee).
This is the closest I could find online, except, you know, silver.