Agree with Dave, it doesn't matter what you call it and it also doesn't matter what you or anyone else calls it. We used to have a saying in my group, "If you're lookin' that close, you're lookin' for trouble"

Back when I was a kid, everyone in my group of buddies was pretty much in the same position, POOR. We built stuff using whatever we could scrounge from boneyards and backyards. Most of us had little side jobs to help support the old heap. I was a bag boy at the closest Liberal Supermarket. The word "billet" was only known inside the steel mills and to spend money on having parts chromed was just stupid, when that money could have been spent on a better part. Most of us had our rides in rattle can primer and that was just to prevent rust and because rattle cans were cheap, not to make the car any more presentable to anyone else, because anyone else didn't matter.(refer to the first paragraph "lookin' too close").

There were 3 kinds of cars in those days, stock, hot rod and custom. If it went slow, it was stock or a custom. If it went fast, it was a hot rod.

Fiberglass was pretty much unknown to us. Lead was the medium to use for customizing a car. I remember a Barris car that weighed in at over 6000 lbs and turned, I believe, 65 mph in the quarter.

Long story short (oops, too late), call it anything you want to. It's yours. You have spent the money and effort to make it run. If anyone says anything about the way you've done it, refer to the first paragraph here