C Kombi 350 or 320 Cdi?

Hello everyone! I would like to ask a question, which type is on vacation (still 2 people, soon 3) Shopping, gardening etc. more useful? I sold my 270er to my buddy yesterday and would like to get another C Kombi soon. For me there are C 320 Cdi or C 350. Which type of engine would you like to use? Thank you very much!