Looking at 08 X5's Bunch of Q's

[mrmojo]

I've had 3 M3's love bmw. my wife is coming from an E350 and likes the GL. I'm hoping to find a nice X5 to convince her otherwise..

1. MPG w/3.0 - searching reveals 15/16 city 20/22 highway - valid?
2. 3rd row seat - seems rare in my searches. standard on a GL
3. Sport pack on a 3.0 - seems pretty rare. I wasnt SP for the seats and the sport steering wheel

4. Can i swap the steering wheel out for an M wheel? I love my E90 M3 steering wheel.

5. DVD - this seems very rare, sucks. I have 2 kids under 2 so this is a big deal. Any cheap aftermarket, tasteful options?

6. Of course I prefer the 4.8. AND, they seem to come better equipped than the 3.0's. What MPG can I expect with a 4.8? I dont mind spending a couple extra $k on a 4.8 loaded up. But the MPG is the killer here.

7. My search has found extended warranty through fidelity as a good option for around $2k for 3 years. Valid estimate?

8. Extended maint @ $1800 - since the main expense is brakes, I dont think this is worth it. I plan to buy an X with 25k miles or less and only drive about 12k per year so probably wont get my money's worth...

Thanks guys... I have a 3 month window to find the right car I hope that's enough...