Here is the photo. The basic model shown here. The "enhanced" version will have the collapsible, folding stock and the forward rails. As it is the ergonomics on the lower are absolutely outstanding. It is the best I have ever manipulated (I am a lefty).
Here are a few points between the ACR and a SCAR.
I really like the SCAR but here are my thoughts from handling them:
1. The all polymer lower is very, very slick. Everything is controllable from the trigger finger (left or right), mag release, bolt release and safety. The bolt release was particularly nice.
2. It is multi-caliber and supposed to be convertible without tools. (The dealer did not want me to field strip it so I could not see for myself.)
3. PMags work in the ACR.
4. The bolt is slicker feeling than the SCAR. I looked at this back to back with one in either hand so the comparison was direct. This may change with firing but I like the feel of the bolt group of the ACR slightly better than the SCAR.
That is about it. The difference between the 2 are very few. The ergonomics are very, very close overall and both should be excellent rifles.
I do not have the spare dollars to buy either one at this point so I can't vote with my pocketbook yet. If I had to buy today, I would stick with the SCAR for the folder and extending stock.