To the moderator: As this is post-1970 (I'm pretty sure), please delete if necessary.
LJ Holden 'Torana' GTR-XU1 (c. 1974)
This is the only olden Holden ad I've found with any copy on it. Not sure about in other countries, but "when you're hot, you're hot" was a fairly ubiquitous saying in Australia at one stage. Not the deepest of sentiments, albeit concise!
[Click on image to enlarge it]