Bead-rolls do exactly that! It's an entry-level "bench-top" thing (Woodward Fab’s WFBR6) but still a very cool tool—can't wait to really get into it. The flanger dies alone are probably going to be worth their weight in gold. I haven't even got them out of the plastic yet.
There are only a couple of spots on the Spyder body that had the rolled panels: under the dash, inside the front firewall (a V-shaped bit); and curving around the inside front sides of the rear fenders (on later cars; early ones mostly had a kind of Jetson's-style wedge reinforcement).
I got the thing because I want to make a 547-style fan shroud and I don't see how it's possible to radius the front and back edges correctly with just my caveman-style plywood press and/or croquet-ball-hit-with-a-rubber-mallet methodologies. There are dies to put a rounded edge on things while leaving the rest of the panel flat. That looks like the ticket.
I'll probably do a whole new thread here when I get into the fan shroud project.
Happy New Year everyone.