For point 2, the number are from a Greenpeace study in german. They say they can generate 25TWh per year with 11.2GW of land wind power (so about 3000 wind turbines) taking into account the storage lost (they assume 42.6% round trip efficiency, more than wikipedia figures).
Do you have any source to support this claim ? AFAIK, France does not rely on Russia for uranium import. France imports uranium mainly (>90%) from Australia, Niger and Kazakhstan [1].
EVs CO2 emmissions depends of the carbon intensity of electricity consumed.
So that is true that Germany with now 323gCO₂eq/kWh has a higher break even. But if you take the same data for exemple in France where electricity is much less carbon intensive, (now 32gCO₂eq/kWh), break even is as low as 15000km for an EV.
Germany should just emit less carbon for electricity generation.
Right, but I can imagine Renault doing a van on the same basis. From 4000$(3500€) to 8000$ is a huge gap for changing only the auto body.
It is also funny to see that Dacia Lodgy is more expensive in India than here in France with more regulation where it cost 9900€ (http://www.dacia.fr/gamme-dacia/lodgy/), closer to your target price.
https://en.wikipedia.org/wiki/Power-to-gas