SXT Sport models have rear disc as well I noticed awhile back.

 

There are actually 3 sizes of front rotors for the Caliber line up.

10.8 " for front disk/rear drum - SE & SXT with 1.8L/5 spd

11.6 " for front disk/rear disk - SXT,SXT SPORT & RT with CVT

and of course

13.3 for the CSRT4.
From the parts and service manual.

 

mne is a 2.0 CVT2 SXT with front disc and rear drums. Is the front the same as the SXT with rear disc?

 

Yes according to the service manual.
The size is dictated by the 2.0L/CVT option.
The SXT Sport and RT use the smaller 10.8' disk
for the rear brakes,most of the braking is done by
the front units therefore the 2.0 and 2.4L engines
require more stopping power/square inches of surface.

 

4-wheel disc brakes are only available on the SXT if you have the Automatic Tranny and Electronic Stability Control.

I've got an SXT Sport with just about every option... except the automatic transmission... With no automatic, you can not have electronic stability control, or 4-wheel disc brake.

 

How confusing come brake time