Satoshi T Thank you @creonphotography and @Kazzi . When I saw tookapic.com/photos/203029 , I felt the body of ED250 like a trapezoid. So I thought your Pendolino have tilting mechanism.
Kazzi as far as I remember, it does not since the gain from it without re-building whole network of railways would be small and it was cheaper that way... political decision, with it's fans and critics. @creonphotography might know more ;)
Satoshi T Thank you @Kazzi and @creonphotography ! In a sense, the circumstances surrounding E351 are similar. In other words, we can not afford to improve the infrastructure such as rough rails, narrow tunnels and old overhead lines... our main line gauge is only 1067mm!!:"I love model trains". So we decide to using Pendolino mechanism to E351 bodies not have to much slow down with the curves. BTW, potential of ED-250 is amazing!! V-max of E351 is only 160 km/h, and at normal drive with passengers is only ...130 km/h X).
Kazzi Satoshi, You know, that our Pendolino doesn't have the tilting mechanism, don't You? :D