MP89CA Stock is rubber tired and fully automated stock that operates on Line 14. These fully articulated trains offer unrestricted movement throughout the entire train from front to rear and have a full window at the front of the train allowing for a view of the tunnel because there is no driver cab; the trains are fully automatic but have operators' controls at each end for emergency use. Additionally, the MP89CA Stock has fewer seats to allow for additional space for standees. Other than these differences, the MP89CA and MP89CC Stock found on Line 4 are identical.