Here's the word that we received from Polaris back when the ACE was released:
You will never want to step out of your machine with these Polaris® Engineered comfort-focused accessories. Cab-like components shield you from the elements while audio and mirrors give your ride a fun, premium feel.
2879703 MTX® Overhead Audio Pod - $599.99
2879694 Lock & Ride® Mid Poly Windshield - $129.99
2879704 OGIO® Lock & Ride® 3-Piece Deluxe Cargo Bag 2879691 Lock & Ride® Poly Sport Roof - $229.99
2879705 Trail Bag - $69.99
2879708 Polaris® HD 2500 LB. Winch - $399.99
*SPORTSMAN ACETM Sport Doors *SPORTSMAN ACETM Sport Doors will be available March 2014
More information can be found here:
http://www.aceforums.net/forum/2-polaris-ace-news/2-2014-polaris-sportsman-ace-specs.html