Well in real life 221 doesn't tilt anymore. It serves XC and GC
Not only that: 221 tilts (except XC) while 220 doesn't at all.
Yeah I hope they'd add 221 since it's not much work to do except the tilting.
It would be nice if you didn't say should but something else
Oh my god I just realized my mistake on the title. I meant to write "Avelia Liberty"!
I've been thinking that the new Acela Express can be made from now on since it entered in Service yesterday if you can get the license but it is...
Separate names with a comma.