[PanthersFX]

I am looking to ditch my 2010 FX35 and replace it with bit larger SUV. There just not enough trunk space in my car now for long trips with the family. I've been driving myself crazy comparing these 2 cars. One side of me wants go more reliable and tech with the Acura the other that wants the speed wants the X5. Test drove several X5 and love they way they drive. I was wanting to see what you guys thought and see if anyone is similar boat? Is the trunk space in the X5 similar to MDX with 3rd row down on both? What are we looking at with deprecation comparing the 2 for next 3 years? How about maintenance ?
I was planning on either getting a CPO or buying a aftermarket warranty if I go X5 route just to be safe.