21740
GM 's Pontiac division is offering a turbo - charged V - 6 engine on its Grand Prix model , even though it expects to sell only about 4,000 cars equipped with that option .
 GM, Pontiac, Grand Prix, only about 4,000
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 GM, Pontiac, Grand Prix, only about 4,000