Steve, of course, would know it it was his column or not.
The whole Motoring Page was simply titled "By A Special Correspondent".
Was Clyde "special"?
The main article is what appears to be a fairly well researched story on Jack Brabham and how the Repco V8 engine came into play.
In the article I noticed this about Jack's switch to Goodyear tyres ...

I seem to recall a "story" (urban myth?) that when initially dissatisfied with the Goodyear's performance, Jack asked Dunlop to quietly make tyres for the team without any white "Dunlop" writing.
Jack then had a "Goodyear" stencil made and ... hey presto ... Goodyear tyres started performing well!
Maybe a bit of a legend ... but then again ... it anyone was going to try something like that ... it would be "Black Jack".