I just checked it and it shows SX on the drop down list, as I don't live in the US so I used the zip code for our friends in St. Petersburg, Florida and it showed 2 available when I selected the 200 mile range but that was for a 2012 model, nothing for 2013's.YES! It doesn't even give the option to select an SX. What's up with that? Just LX and EX.
I monitored the 13 dealers in my state for months before I purchased my EX HB with conv. pkg back in April. They do pop up on the lots but don't last long. 3 vehicles of my preferred configuration (as well as 5 other configs) hit one location at the same time and one of my config went the first day. I scooped one up the next day. Luckily several colors were OK for me so it worked out.In the end, securing a hot commodity like the Rio (configured exactly the way you wanted) is mostly about timing and luck.