Peugeot 5008 or Hyundai Tucson?

I would guess that a 1.6 when towing would be quite thirsty as foot to floor to pull up hills and away from lights. Why not the 2l Tucson as less effort needed and probably give a better fuel consumption as less effort on the engine. This is only my opinion and many will disagree especially the 1.6 owners.  

Thank you for your comments..

At least for 70% of the time I won't have a caravan on the back, I was looking for something a bit leaner.  On the other hand...we are planning to tour Europe as far as Greece next year, so your comments are valid.

At the moment, for my 1.6l engine I'm getting around 33mpg when towing and 38mpg urban when I'm not.

Often a 2L engine will be more economic than a smaller version because, in layman’s terms, it doesn’t have to work so hard. The 1.6 wouldn’t be my choice but, ultimately, it’s up to you. 

As you say the majority of your time is driving solo so the towed consumption is possibly not your top priority. Given you are towing a lightweight pop top then wind resistance is far less of a problem for you than those of us with full size models. Given the low weight and low height I would have thought either 1500 model would work reasonably well.

Again you have to refer back to the fact you will drive mostly solo so whichever suits you daily needs best might be the best way to judge.

The Peugeot did get a favourable review as a tow car with a bigger engine so I would not rule that out on towing stability as it does appear to have the weight needed for stable towing.