Tony Trimmer ขับรถคันไหนที่สนาม Oulton Park Circuit
What car did Tony Trimmer drive at the Oulton Park Circuit?
df = pd.DataFrame(columns=['winning_car', 'circuit', 'winning_driver'])
df[(df['circuit'] == 'oulton park') & (df['winning_driver'] == 'tony trimmer')]['winning_car']