Originally Posted by Pocket-full-of-gold
Assume you mean COA shell?
I ask not to be a pedant, but because I think it's situations like this that have helped create the myth that the mytserious "steel shell Supra" actually exists. It is the stuff of legend, yet no one has ever been able to prove it exists....lord knows I've never seen one and nor have any Ludwig afficionardos that I've encoutered. But that hasn't stopped the talk. I put it down to people confusing the shiny chrome coating as steel. If you really do have a steel shell Supra it'd be the first confirmation I've ever seen.
I guess COA or COL ( Chrome over Ludalloy ) are the most correct ways to say it since the alloy contains mostly auminum and varius other metals to allow it to be extruded. Mine is most certainly a Ludalloy version.