Great find Thank you for posting Tennessee this will help answers more questions I was wounding 
Polaris has a 560 watt @12 v is 47 amp and Can Am is 625 watt @ 12v about 52 amp. So it is smaller and in fact as we have all seen from the original 800 razor that 400 watts isn't enough, hence the statement to add a battery or the larger alternator.Stock is 40amp. So, with all the big lights and stereo's that will push any SxS's electrical system to the max. Nothing new here... on the others you can on run them only so long or wait until your 2nd battery is dead and switch over. At least there is an option to run it forever.
10 things my dealer will tell me:
1 We're only going to get 4 in the first shipment
2 None of these will be blue
3 You didn't get your deposit in quick enough
4 You can't ride it around in the parking lot
5 You can't sit in it
6 You can't crank it in here
7 We will stock no accessories for the YXZ
8 Turbos won't fit this engine and warranty won't cover it
9 You can't pay cash for it
10 Reckluse clutch....what's that?