After the dark stories of alien murder and assassination in Captain Scarlet, 1968 saw Gerry and Sylvia Anderson create a more "gentle" series featuring a 9 year old boy whose father has invented a machine that can imprint the memory patterns of other people into his brain - thus giving Joe various skills that make him a super secret agent. Once again, the series featured stunning model effects work and futuristic vehicles which kept young children entertained.
Although I had the original Dinky version of Mac's car, it disappeared from the home probably sometime after the 2001 fire we had. I subsequently managed to find one of the Corgi versions from the 1990s which feature in these photos. More recently I found a Dinky Sam's car on eBay, painted brown.