A company that does gas station type canopies can install a flat smooth mansard that would give it a much more finished, modern look.
This company is near me and does a ton of express washes.
https://secanopies.com/car-wash/ There's probably a company that specializes in gas station construction near you. They may be able to tell you who they use for their canopy work.
I agree with Eric and don't really want the large vehicle business. My lots are too tight and It has too much potential to bring a lot of problems with it.