Your 'high 40's' was when you owned a DIG-S model. That's a thirstier beast at 96bhp. Mine is only 78bhp.
Having more power does not make a car less economical overall. The extra power can mean you have to thrash it less to keep up "normal" road speeds. At one point in the 90's we had 2 cars in the house with identical engines, one was 65 PS without a turbo in the smaller, lighter car, the other was 90 PS turbocharged in the larger heavier car. In every type of motoring the car with 90 PS turbo engine was more economical. A few years later we swapped a 130 PS turbo for a smaller 110 PS turbo expecting an improvement. Both cars had pretty much the same power to weight ratio but the smaller 110 PS car only bettered the 130 PS by a couple of mpg.
The wifes current car has 110 PS turbo and weighs about the same as the Note which had 98 PS. They get used pretty much the same on the same roads but the current car does about 48 mpg against the Notes 46 mpg.
Before the Note we had a Nissan Micra 1.2 with 80 PS. A smaller much lighter car than the Note and in truth the performance of the 2 cars was pretty much the same. The Micra averaged about 44 mpg less than the Notes 46 mpg.
In the above examples less PS only resulted in more mpg once.
Honest John does indeed give the non supercharged version a high overall mpg than the supercharged version, 46.2 mpg against 45.3 mpg. Not quite up at your 60 mpg is it?
Hopefully they'd have filled their tank first with E5 but that's another bowl of contention.
When we had the Note there was no E10 so I think we can forget that as an excuse for my crap mpg.
I never suggested than an owner will get "62 MPG" so that statement should be beneath you (smacks of trolling)
The 62 mpg I wrote in my thread was a mistake, you said "I get 60 MPG " so not much difference. 62 or 60 mpg the new owner will be pretty devastated when the get a real mpg in the mid to high 40's at best.
As for trolling its against forum rules, if you feel I am doing that perhaps the moderators should have a say.
I have said it before, if you want 60 mpg and your type of use suits it get a diesel, it will always beat a petrol.