Dodge Caliber Chassis, Suspension, Wheels, Tires
Found the sizes for the Rotors/Discs used on the International (Export) Calibers
They are standard across the range and it looks like the 15" Steeel Wheel is only fitted on North American models.
Front 294 x 26mm Vented discs with ABS
Rear 262 x 10mm Solid discs with ABS