I believe that Nucky in Belgium could give an opinion as to value as well, he may have seen a few of these. It is a German can with a 60s open cockpit F1 racing car on it. Looks nice for sure. Inhalt, a German word, means "contains" and the GmbH behind the company's name is like LLC- a limited liability corporation.
So it would appear to be a 60s era can from West Germany unless it is a later production with a vintage racing car on it.