I was on a 755(421) that sounded more whiney than usual yesterday sitting above the front bogie. It was also running on 3 engines only. Not sure if that was due to a fault - or a deliberate decision to save fuel / maintenance.
The 745 (006) was accelerated very well. 0 to 60 in less than 40 seconds and 100mph in well under 2 minutes. Very impressive. I make this the UK's fastest accelerating Intercity train??? Though some might argue that as it does not do 125mph..it isnt an Intercity train at all.
These things rip the timetable to shreds arriving 2 to 3 mins early at each station. Mind you - a hard driven 90 in the dry can also arrive early at most stops too. It will be good to see if timings north of Colchester can be reduced in the short term. Sitting at Ipswich Stowmarket and Diss for a combined 10 minutes is ridiculous. And still arrive at Norwich 2 or 3 early!
It will be even quicker when they can use full power