I guess the key is when was the Zephyr Corvette blue?
Its first season before being painted white and gaining the stacks?

The only meeting the entry list matches anything close to the other car numbers is November 1966 for G.Huxford.
In March 1968 there is a fastback Anglia #92 for RJ Slacke from Masterton.

The other possibilities are that it is the Radisich car before it got the droop front, was it ever Red?
Is it the ex Sipmson car, where did that go to?

I haven't got a full enough collection of Motorman or Autonews anymore.