As kkarson said, it is a 750i which is the short wheelbase model. You probably are aware of this difference between an "i" and a "Li", but if your not, you might want to make sure this one fits your needs.
I have a 2007 750Li and it has been rock solid for me. No major issues and all the minor stuff was handled under warranty. If you do have some CPO warranty left, just make sure you have any issues you encounter taken care of before it runs out.
Also, that car has the beige and black interior...which is the best looking interior on these cars in my opinion.
2007 750LI Barbera Red
2001 330Cic Orient Blue
2000 328i Jet Black(Sold)
2004 X3 Mystic Blue
2012 X3 Alpine White