Fastback Rear Quarter Glass - Power Option? in Exterior, Body, Chassis & Paint Posted June 30 Does anyone know if the 71 Mach 1's came with the option for power rear quarter windows? If so, is the glass the same for the power option as well as the stationary (standard) option? I have a rear quarter with a scratch in it..and after polishing it is better, but still there. I'm inclined to leave it (as it is original glass and is not that bad) until I convert to crank (or preferably power windows) in the future. Welcome the input.