Thanks for the update PaulieB - great figures you have there. How many miles total have you done yet (do you think it's still going to loosen up a bit and improve)?
Can't wait to get my Ecomotive 1.6CR in a couple of months!
Are you a V-Power Club member by any chance? Their freebie magazine, V-Zine, arrived in my post yesterday and included an interesting piece on driving from London to Monaco on one tank. They used a VW Passat 1.6CR BlueMotion (saloon), a Volvo V50 1.6 DRIVe Stop/Start (estate) and a Ford Focus 1.6 Econetic TDCi (hatch)... made very interesting reading.
The Ford needed a top-up of diesel about 100 miles from the finish, the Volvo made it but had almost no fuel left, but the VW comfortably made it with trip average mpg of 84.1 - way higher than it's official consumption figure. The writers claimed that with it's large 70 litre tank, the Passat would have a range of approx 1,300 miles for similar driving conditions - simply amazing!
As for your comments on driving in snow, I'm sure that your Leon would be just fine with the right (winter) tyres on. I took the plunge last year and bought some Michelin Primacy Alpin PA3s online, delivered pre-fitted to basic black steel rims. Best money I've spent on the car... they really got me out of trouble a few times over this last winter and there's an unavoidable feeling of smugness as you drive past abandoned 4x4s. If you live in the sticks, I'd highly recommend getting some.