Plus it absolutely hammers the phone battery as the handset whacks up the power to get anything through. And it more or less blocks GPS signals meaning you can't use Speedview to see how much faster they are than the HSTs.
No, they need replacing asap with modern, electric trains that are faster, quieter, more reliable, more accessible, don't chuck out CO2, don't fill stations full of fumes, aren't riddled with corrosion (apparently) and don't empty **** onto the tracks. Apart from that, they are fine.