Question: Which Formula One car besides the Tyrrell P34 was one of the most radical entries ever to succeed in F1 competition, that used flat panel heat exchangers?
{'answer': 'The Brabham BT46', 'supporting_facts': [['Tyrrell P34', 0], ['Tyrrell P34', 2], ['Brabham BT46', 0], ['Brabham BT46', 1]]}