The easy way to update the look, not as cheap as DIY w/gel stain, but looks even more like a wood carriage door. "Garage skins application GarageSkins Give You a Wood Look Without the Cost"
Slide-Open Convenience - same sliding door idea.
I like the indoor glass area, make one roll up wooden garage door and then some sliding glass doors on the other side. Then you have your Uncovered patio area, neat!