You guys have convinced me - I no longer have a Cobra Replica - From now on it will be a "Cobra Inspiration", or "Cobra Inspired".
In fact I might go with "Cobra Evoque" or "Cobra Ish", or "Cobra Tipo" - I'm sure that as time pases I might think of other possibilities that wont give too much offence.
Actually I rather like "Cobra Tipo" - think I will badge it accordingly.