I would completely agree with that P&G technique. It's something I've learnt very quickly with ours and we're only 1600 miles into the life of our car. Accelerate to your chosen speed as quickly as possible, using full power if necessary, then back right off the throttle as soon as you get there. We had an excellent trip home from my mother's yesterday (Stourbridge) of around 122 miles which was mostly by motorway (M5, 6, 42, 1 & M18 ) and perhaps 10% urban. Started with a full tank and zeroed the avg mpg meter. The average speed shown for the trip was 61 mph as we pulled into our driveway and the average fuel consumption was 63.8 mpg! REALLY pleased with this nice little car (first long trip it's had in quite a while). Oh and by the way, this was on 15" winter wheels /tyres but I don't count this as a factor because the combination I have has a rolling circumference that is only -0.27% difference from the standard 16" wheels combo... Oh and above all BE GENTLE WITH YOUR FEET while cruising! Especially when braking (where possible). Finally, if you have it, use the Cruise Control as much as possible based on your GPS speed (if you can) not Speedo Speed (which is very inaccurate on ours). I noticed at times that when I was doing a steady (true) 60 on the flat, the ICE was merely ticking over at between 800 - 1,000 rpm so most of the work was being done by the traction motor and battery... (I have the Torque Android app connected by BT to an ELM327 OBDII plug...)