Mark,
I would have no reservations over choosing this vehicle, while on paper it may seem a little ‘puny’ the advantages to these 1.0 litre 3 cylinder engines is that they are very light, and they are surprisingly nippy.
The advantage with this car is it is an automatic gearbox, in small manual gearboxed petrol engines cars you are pretty much constantly changing gear as the optimum torque range is so small. As mentioned, these engines are all but silent on startup and give a pleasing 3 cylinder growl under brisk acceleration. One test drive will be enough to reassure you.