I also have an Ecomotive 1.6CR and the homologated official figures are a little optimistic, in my experience. I have only seen a journey average of >74mpg on two occasions in the approx 18 months that I've owned the car... both times I was doing long distance and trying very hard to maximise economy.
On regular journeys if I'm in a rush, I'll see mid-high 50s. If I'm driving with economy in mind, probably 63mpg average (but more for very long journeys if I try hard).
If stuck in heavy urban traffic for hours and hours, maybe mid 30s (in those conditions with my petrol FR, it would be on single figures!).
I don't think you'll see the best mpg figures until at least 10k miles and probably not until 20k, if it's like mine.
Also, if yours has rubbish tyres as stock (mine had standard Pirelli P6s - *not* the LRR 'Cinturato' version), you'll benefit from changing to a proper eco tyre like the Michelin Energy Savers that I use in the summer months. I'm using winter tyres at the moment and they've cost me a few mpg.
I'm still pretty pleased with the economy of mine. I had to try really hard to get 400 miles per tank out of my pre-FL petrol FR. With the Ecomotive, you can get 800 miles when trying and I always get >700 miles per tank even when not really trying. I do a high mileage so, for me, the fuel savings absolutely dwarf the road tax savings, but the free tax disc thing is certainly a nice little bonus.
