Is it my imagination, or does it look like he finished the back end by just stretching fiberglass mat over the body and kind of painting it on? Or do you think he used that as a mold?
Yeah, but this car definitely isn't rust free. The photo doesn't show it well (I didn't want to go wandering onto their property with my camera) but I can see the rust in the wheel well. My assumption is that the quarters were rusted out, which is common in MD.
It appeared pretty recently. I wouldn't bother cutting quarter panels out of a car unless I planned on putting new ones in. One of these days I might stop in and ask about it.
Spotted this near my house recently . . . no fenders, no doors, no interior, quarter panels cut off. Looks like someone has started a project.
It's white with blue sills, so I'm guessing it's a '72.
It would be a lot less work to get a similar look by taking a set of stock taillights and masking them off, then using black spray paint to create the lit center and outer ring effect.
How about . . . a '72 FB (not Mach1) with the HO 351C engine, hood scoops, 4 speed, deluxe interior & gauge package, and fold-down seat. Black. Dual exhaust with chrome tips and throw a set of spoilers on it. I would omit AC.
Maybe a former owner worked in construction or something. I can see somebody driving regularly where some excess wet concrete was spilled, and it splashes up under the car, and builds up over time where you can't clean it out. Maybe even built up in there as a powder and hardened over time...