The new GM (it's a different legal entity post bailout) bought a bank and renamed it GM Financial:

http://en.wikipedia.org/wiki/GM_Financial

The old GM had sold a 51% stake of it's finance corp to Cerberus:

http://dealbook.nytimes.com/2012/08/21/profits-in-g-m-a-c-ba...

But the US Treasury took majority ownership in the bailout.

That entity is now Ally:

http://en.wikipedia.org/wiki/Ally_Financial