Well not today - but Sunday and Monday - I drove from Brighton to Paris via the Tunnel.
Started with a full battery, put it on Save to use at the tunnel and in Paris - much of the rest of the drive was on cruise at 70 mph (in fact coming back late last night was on cruise for nearly 2 hours without coming out of it!). Averaged 34.8mpg on the way down and 36.9mpg on the way back. That's ok for me for a 2 ton 4x4.
Drove like a dream, comfortable and smooth, caused a few comments in the train as it crept silently down the carriages, and a few French people in the hotel garage came over to ask how it was so quiet.
With all the moans of the Satnav it took me exactly to the hotel in area of Paris I have never been before. BUT: on the way down it wanted to visit a number of pretty towns until I realised it was set to avoid tools (even though I was already on the toll road!), and the POI had Eurotunnel at Folkestone but not at Calais - and its a pain as it expects every piece of info when it should be obvious!. And (the funniest) as I was coming along the M20 it wanted to go off at the Ashford turning and go along the parallel road and come back on to the motorway slightly later - no I didn't!
Used a quick charge on the way back when I stopped for coffee which gave me about 10 miles extra, but even with a near empty carp[ark at gone 11pm some charmer parked in one of the bays with an ICE (unless Vauxhall were making electric Corsa's 10 years ago
).
What I was surprised about was when I set Save I expected it to remain at the same level but it actually increased the battery level by some margin (battery bar went up about a qtr over the length of the journey) so I gather it 'collects' spare energy when you are doing constant speeds?
Whilst the manual says you don't have to change or use adaptors for the headlights I got more than a few flashes!
As this is the first long fast journey I am very pleased with it.