I love my 99 SSEi, EXCEPT FOR THE REAR DOOR WINDOWS. I want to make it so that the rear windows go all the way down. My 97 Grand Am'* rear windows went all the way down, so when I spent $34,000 on a brand new Bonneville, I assumed they would too. NOT! The rear doors sure look like they are large enough to allow the rear windows to fully retract.

Second, Is there a kit that will allow me to make the triangular windows in the front door - open and close like the 1970'* style window vents?

The hardware in your back windows won't allow for them to go down all the way. Child safety feature. theydon't go down all the way because of the child safety lock feature on the back doors. A child can't reach out to open the door with the outside handle this way when the safety latch is engaged. Yes, there'* room, but there isn't enough track to do it. It'd be a helluva job.

There are no kits for the front 'fly' windows. I'm not sure it would even be possible the way the doors are designed. Again, this would be an expensive custom job if even possible.