The bit about Berger Chevrolet on today's news about the wrecked ZL1 reminded of this right here:

Berger Chevrolet not only sold COPO Chevrolets and performance parts, they also had their own brand of Super Car, namely, the Berger Super Nova, to compete with Don Yenko's and Baldwin Motion's offerings. I've several pictures of miniature Super Novas, manufactured by GMP, but I think I've yet to see a pic of the real thing aside from these brochures.