Those nice seats with the blue stitching are not available in the US, I believe.
If you're going to go with the M5 reps, which I'm doing as well, why spend the $900 or $1000 on the 19" upgrade? My car is on a ship in the Atlantic and those 18" wheels are coming off ASAP.
The EB is the flashiest color BMW offers. IMO, BMW lacks in the choice of colors. I like metallic paint with flake in it and has some depth in the sun. I think the EB is best looking. But, I'm totally bias. Plus, EB is proprietary to M-Sport.
Per the previous poster, check your price on bmwconfig.com. About $600 over invoice is a good price and now BMW has incentives. Don't forget about your USAA discount.