I thought the 6 speed auto was a conventional TC auto. There is no 6 speed DCT, is there? The Hyundai DCT is 7 speed.

SLO you are a star. I'll start to look for both now. Yes the car is great but living near Scarborough it goes against feeling more comfortable buying near to home. Much appreciated, thanks

The 6 speed box is I believe an automated manual box, the sort of thing which has proven to be appallingly unreliable in other brands but so far it seems more robust with Kia and Hyundai. I’d favour the older torque converter 4 speed. I’m confident enough in either if properly maintained but the older one is bulletproof. Buy one with a full Hyundai dealer history that has at least a year manufacturer warranty left or more if buying the DCT box which is exactly what you plan on doing anyway if I remember right. Service it there for peace of mind too, these gearboxes require fluid changes at some point and they can fail if it’s ignored.

As far as I can find out(!), the (facelifted) ix20 and Venga used a 6 speed t/c auto.

It is very hard, almost impossible in some cases, to find out whether or not a car uses a t/c auto or a DCT. This very website used to have info like this in the 'model history' section of each car's review. But inexplicably, this very useful feature has been deemed unnecessary and is no longer a part of the review.

Doing some more searching though, I came upon an exchange from the Kia owners club forum, where it was stated that the 6 speed auto in the Venga (and therefore also its mechanical twin, the ix20) was in fact a torque converter auto.

As a t/c auto, as long as the manufacturers service schedule has been followed, and the auto box itself hasn't been 'abused' (very unlikely in a car of this nature), there is little to worry about. I'd feel quite certain that a decent ix20 or Venga will go about its business with no problems at all for many years to come.

As an aside, absolutely node why the OP felt the need to start a new thread for this rather than his existing ix20 thread, but hey ho.