I will stick my neck out and say the ordering guide offers the Z/25 and L34/L35 only on coupes in the Beaumont range, but I am always willing to be proven wrong. I can find no production numbers for Z/25 Beaumont convertibles, though we did build 488 Beaumont Custom V8 convertibles, and 40 of the 6 cylinder ones. In life we find there are always anomalies and nothing is cast in stone.