Biotechnia Ellinikon Trikyklon

Biotechnia Ellinikon Trikyklon (Βιοτεχνία Ελληνικών Τρίκυκλων, "Greek Three-Wheeler Manufacturer"), or BET, was a small vehicle manufacturer founded in Athens by Petros Konstantinou. It was one of several manufacturers - the first appearing in the early 1940s - that converted BMW or other motorcycles into light utility three-wheelers.