I've got a 200 series (2016), but it is diesel. I didnt think they made them in petrol, maybe a really early model????
I tow our panda (3.1T max weight) with it and it is fine. It works going up hills, but the power is there. Also towed it across the gibb and did 23500km in 2016 with no issues other than it got a bit squishy driving to our campsite in the daintree. (those roads are built for a mini). Our consumption is anywhere from 17L/100km to 22L/100km and the car is jam packed full of kids with at least 1 kayak on the roof or it had 2 full 20L jerrys , tents, swags , max trap and 2 spares one on top and another hanging off the rear. Our neighbours pull their van (slightly lighter) with a petrol patrol and get in the 20's for towing.