The way I look at it with these motors, using them normally, IE, open road driving, lots of accelerating and listening to that wonderful purr of the engine. You are going to burn fuel, not sure I have ever seen mine as low as 22mpg, but I have got it down to 25mpg, which I would expect considering how I am driving it.
Round town, I easily get 45mpg as I spend most my time on elec motors with occasional engine on tick over.
The fact is, for the 25mpg, I am getting something that accelerates at the same speed as an Audi Q7 4.2ltr but at a third of the emission output, so lower tax, better consumption... Better all round. Not only that a Q7 would be giving you about 16mpg!
My average in and out of town is about 27 - 28mpg, which I think is brilliant for the size and performance of car. I am sure if I did more town use I would get better.
My point is, if you wanted to buy this car and expect to get Ford Focus 1.6 fuel economy, you have been very mis-informed, for the size of car, it is good on fuel, in the scheme of economy and cars, it is not that great.