It's nice to see they are open in the appraisal:
"The 1.4-litre petrol engine is the smallest unit available in the ix20, and while it has only 89bhp, it’s smooth, eager to rev and powerful enough to ensure the car keeps pace with urban traffic. Standard stop-start helps boost fuel economy around town, and the ix20 returns 50.4mpg on the combined cycle.
However, the motor can struggle when there’s a full complement of passengers on board. If you are planning on regularly carrying big loads, you’ll be better off with the torquier 1.4-litre diesel".
Link to:
https://www.i30ownersclub.com/forum/index.php?topic=6869.0and
https://www.i30ownersclub.com/forum/index.php?topic=6821.0