Pete Sallying downhill and doing 999mpg is cheating sorry.
Stewie 0.00l / 100km well my leaf gets that every day !!! He Hee.
Guppy - mine can show 50 miles range and then if I boot it it comes down and says 20 miles, but the calculations are done every 2 seconds and work on past and current driving style.
If you wear space boots then it's gonna go up and down, hence Pete having more range than when he started.
Iain - I agree, but I found my Picasso was very accurate and though I did miscalculate a couple of times and go 0 miles, it is not recommended because you can pump all that sh*t from the bottom of your tank, through the system, not good. Also, I researched and found that the picasso had just over a litre of fuel after the reserve run out, giving approx 12 miles left to do driving economically.
I think I can get pretty much the best MPG from a car ( don't forget I'm from Yorkshire ), and driving using every trick to eek out the fuel to it's furthest range. I would love to have a diesel for a month and see what I could get back. I just find it interesting and quite a challenge.
Thanks for responses....