How can I tell it is Saab HOT?
 

Hello, I am from UK, today I went to meet the salesman for Saab 95 2.3T HOT manual with 107,000 miles on the clock, when I took for a test driver, I felt the car is not really 250bhp more like 170bhp, seller claim it is HOT I think he tries to fool me to buy the wrong engine spec. How can I confirm it is HOT 250bhp? I can't see any badge or label to say it HOT?
thanks