Hm? What does Vinci have to do with the price of a contract nowhere near even PPP tendering? Isn't Vinci pushing up its contract price for Tours-Bordeaux to €8 billion? In the linked document, EE-les Verts put the "extra" price tag of Bordeaux-Toulouse at €2 billion, RFF the full price at €2.8-2.9 billion.

EE-les Verts seems to argue for 220 km/h in general, though their travel time comparison is for Paris-Toulouse with Tours-Bordeaux built as planned. They sadly make the argument by not considering capacity, and give bad examples to follow (Germany: before they think a half-measures high-speed system is good, first compare ridership; Austria, Switzerland: compare domestic travel distances; USA: long-distance rail transport role model, really?). And it appears they seem to see the financing and ticket pricing models they criticise as inevitable rather than the problem.

_{*Lunatic*, n.
One whose delusions are out of fashion.}