I thought it's normal for cars running on turbos to sort of 'cool down' before the engine should be stopped? Isn't that why cars equipped with turbo kits use a turbo timer? So perhaps in proton's case, since the turbo is a low pressure boost, only the fan continues running to cool it down instead of having the entire engine unit running? (correct me if i'm wrong)

Dont ever accept a showroom car. Even if the discount or offer he gives is really good. The wait is worth it