Never in a million years.
I mean, they would if they could but they can’t so they won’t. Like, they can’t even agree to build a freakin’ train station.
“A major sticking point for opponents remains in the construction of a cement tank for underground water management.”
Observing Hermann 
Of course they could. But it would take 40 years to get the paper work done. Before a German gets his third lane on the autobahn or a tunnel to save traveling time (see train station), he will get one third more taxes for all those socialist goodies.