Looks like someone in the ordering department splurged a bit and purhaps ordered a few with the 6 cyl upgrades.
Kewl for you! I guess the key is to look for the Dual Exhaust if you think you need the 6 cyl.
IMO the 4 cyl kicks it great. Go for the better gas mlg and be happy with the standard when you get them though.
I can't wait to be in the garage seeing ppl checking for the dual exhaust though. LOL