The Car Fanzine must have a rememberable logo and one that is relevant to the Fanzine.
Eg1: Apple is remembered not only due to their fantastic operating system (OSX), but thanks to its logo being so easily remembered as it is the shape of an Apple. The Black, Silver and White are the colours of sophistication and therefore suited Apple.
Eg2: Microsoft is remembered by their operating system, Windows. Their logo is a combination of four colours (Blue, Red, Yellow and Green (Primary Colours).