[Maaarkk]

Well guys, hoping I can get some help on here.
Currently have an e92 but would like to switch up to an e63. Will definitely be the 635d that I'm looking at so I was wondering if there's anything in particular to look out for? Or to make sure it's spec'd with etc.
Another question that will sound stupid but I've been looking at the 'sports', are there any differences between the sport/non sport, or are these all 'sports' ? Saying this as with the e9x/e60's etc I would always pick the m sport over se for the looks.

Thanks for any help!