Argh that route uses Leyland 142s dosn't it? I very very rarely use them but had to get one to Hyde a few months back and it was horrible.
The version I read was that the they tried to make it so you could not feel the tilt, but the body could see you the train was going round a corner but not feel it, this what made people feel sick. With the Bentolino they made it so you could feel the corners much more resulting in a much more natural ride. I personaly love going round bends at 100mph in them, its such a wondeful feeling.
The HST at 100mph does not feel the same.
With the tilt machanisim am I right in thinking that the UK still owns the patent for it?