the most interesting cars are seen at Bonneville, but did this Mustang owner need to JC Whitney it up to draw attention to himself?

spinner hubcaps, double stripes, and an over large trunk spoiler? Really? Looks like a fastback by the vents on the C pillar. Might be a GT 350?

https://www.jalopyjournal.com/forum/threads/vintage-shots-from-days-gone-by.428585/page-6601