Somebody else had something similar once upon a time. Honda Element, maybe? Don't remember. I doubt the ramp is big enough for a big dog wheelchair, but how terrific for walkers! It looks SO easy to pull out.
The Honda idea was an open compartment hollowed out under the dashboard where a small dog could ride safely, like a big glove compartment with no door. It was a good idea because you could see your dog and in a sudden stop it was protected by already being against the firewall/whatever so it could not be propelled forward (no need for doggy seatbelt harnesses).
You should send it to Mark!