Tarraco as a towing vehicle for caravans

Hello professionals, we want to exchange our Opel Zafira for a strong towing vehicle for our caravan. It currently has a maximum of 1,700kg, which should be a breeze for the Tarraco. But would the 150hp motorization already be enough? Petrol or diesel? Automatic or switch? Questions about questions, because the more performance the more expensive. A used car with up to about 30,000€ is bought. What would you recommend, which special equipment would be a must for the purpose? 7 seats should be he has, this is already safe and an AHK. Thanks for your tips!! Another nice 2nd Christmas day and everyone stays healthy !!!