(02 Apr 2016, 1:17 pm)GX03 SVC wrote 7522 touched 65mph the other day, going down Fisher Lane.
The power sockets must be powering the turbocharger- it drained my battery from my battery charger and iPad!
Haha, I know 7522-33 can shift, I was just pretty surprised when I realised just how old 7474 was, especially taking into account it spent majority of it's life in London!
One thing, have they delimited that batch of E400's, sure I saw a sticker on 7524(?) saying it was limited to 100km/h? (Less than 65mph) Although I'm sure I've been on them when they've been doing similar speeds to what you've reported there, as they've been keeping up with/overtaking cars.