Purchase advice Alpha 156 vs.166

Hello to my little sister is a car purchase. She shoots with one eye towards Alpha. She wants a lot of power and the models are relatively inexpensive with around the 5000 from BJ 98. Now the question. Which model can be recommended?156 or 166? Are the motors with 155hp sufficient or should they take the from 2.5l with 190hp?! Is the prejudice that the 166 is a “diva” and makes ticking?What about the quality at Alpha?Are there prejudices that would be a pitfall etc…. Especially by working with Fiat which has been finished… Would be nice to hear a lot here.Thank you in advance.Poste lich die Modelle we want to look at the models we want to see more closely.