The louvers you see on the rear shelf of all '65 Ford 4-door hardtops (LTD shown) are part of an exclusive Silent-Flo ventilation system. This draws smoke and stale air out of the car quickly and efficiently.

Silent-Flo, in fact, enables you to completely change the air in the passenger compartment every few minutes with all of the windows shut. It also serves to help keep your rear window free of mist.

There is no equivalent of the Ford Silent-Flo ventilation system in any '65 Plymouth.

To effect front-to-back ventilation in any new Plymouth model, you must open one or more rear windows. This can create two problems - wind noises and drafts.