Wow, that chariot is rather stunning. Its iconography reminds me *partly* of the sort of thing you get in Egypt and similar areas around that time - evidence of contact, maybe? Wikipedia puts all the emphasis on possible Danubian origins and 'Indo-European mythology', but I don't see any reason why influence from outside Europe and/or the IE-speaking area should be ruled out.

But then there's probably a whole load of scholarship on the object that I'm entirely ignorant of!