The phaseout of fossil fuel cars required a qualified majority. That means that as long as two out of Germany, France, Poland, Spain and Italy are for it, it is going to stay. Also some other votes are needed, but that is basically it.
Also the CDU needs a coalition partner and that means either SPD or Greens, which voted for the phase out, or AFD at which point the problem of smoke from cars is the least problem in Germany.
Über 600.000 Wohnungen für 22Milliarden€ klingt nach nem Deal. Wenn man Vonovia dann eine Staatsgarantie gibt, dann gehen auch die Zinsen runter.