It's true but it's suspicious to require to sign a contract with government to have the money. They should instead have just publish a specification of what a car should have to qualify.
The fact that the 3 majors German car makers have already a head-start for this subvention whereas there are lots of electric car models from other car makers doesn't inspire trust in this process ...
What head-start? The market for electric vehicles almost does not exist. Almost nobody is buying them yet and it's not only a cost problem.
The money allocated will be available for 350000 cars. It will take some years to sell those. In 2014 the whole of Germany bought just 8522 electric cars plus 27435 hybrid cars... It's even worse, probably half of these cars were never used in Germany but exported...
The fact that the 3 majors German car makers have already a head-start for this subvention whereas there are lots of electric car models from other car makers doesn't inspire trust in this process ...