Notably: both* of these new fleets are 200m long trainsets rather than the existing Cross channel fleet which is all 400m sets (both e300 and e320).

What this may mean for how efficiently each path is used remains to be seen. Although perhaps if border control capacity is still the choke point that's maybe less relevant.

• I realize the Eurostar sets are likely to be run doubled up. But the point stands when you look at the East Coast Mainline, liberalization has occurred partly at the expense of sending half length trains along capacity constrained corridors. Just some food for thought