The key question in the eye of the law: is this copy of Red Bull trying to pretend it’s the original? If it is, it’s illegal, as then it’s “passing off”.
I think they just about get away with it, although the choice of another red animal as the copycat symbol of the brand is a major coincidence, n’est ce pas? (see also Penguin vs Puffin). But it goes to show: if you’re copied then you must be on to something. So one tip would be to keep one step ahead of the copycats like this puma – and find something uncopiable (eg, patent the packaging format, product formulation, etc).
If you find more examples of blatant copies, do contact me or post your comment here.