New (to me) E70, a few questions

[Lost Cosmonaut]

Hello all,

We recently (last Saturday) traded our 2005 E53 X5 3.0i in on a 2009 E70 X5 xDrive35d with 18k miles (still smells new inside!). So far loving the upgrade, but I have a few questions being new to the E70s.

1st, I parked it in the garage after bringing it home and it dripped a tiny bit of oil on the ground. Is this common? It's still under warranty so I might have the dealer look at it, just wondering if this is just an E70 thing.

2nd, the rear hatch is the powered type and doesn't work properly. It will go up (sometimes) but not go back down and has to be manually pulled down. I figure this will be covered under warranty, just wondering if this is a common problem (as in, it will happen again)

3rd, on our E53, the floor mats were held in with big velcro-like disks that screwed in to the floor. I noticed the mats on the E70 have the same velcro-like loop setup that attaches to those disks, but no disks in the floor. Is that something I can add? I hate the mats sliding around everywhere and it's a little disappointing that my 2005 had those holders but the new one doesn't

4th, there's a cord with what looks like a phone-type plug that's coiled up right next to the right side of the gauge cluster. I can take pictures of it if necessary. Any ideas what it could be for? My guess was power supply for a radar detector or something but just wondering if it's an option or accessory I haven't seen before.

Thanks for any help