Oh I thought he was on about the FR, which of course has the 170 engine with a DPF in whatever guise you get it in... fair enough.
Still, the figures don't add up at that milage, but they are nice to drive (although I've not driven the 2.0TFSI or similar, I'm kinda presuming these are just as good!
2.0TFSI is very good (would have had but very expensive to run for me based on mileage and age).
You are right, petrol would be best on paper but lets face it if we all had cars for a to b only Kia would sell a lot more Picanto's (no offence - good car for the money!). Whatever fuel type it is still a good choice.