Like this?
http://www.discountramps.com/wheelch...er/p/SC500-V3/
This deluxe scooter and wheelchair carrier has all the features you'll need for quick and safe transportation of your wheelchair or scooter at an extremely affordable price. Made from black powder coated steel, this carrier holds up to 500 lbs yet it's light and easy to handle. Includes an extra long 59" three position ramp that folds into two pieces for easy storage on the carrier and makes loading and unloading a breeze. Optional Swing-away accessory allows for easy access to the rear of your vehicle.
Accommodates most wheelchairs and scooter and carries up to 500 lbs
Made from durable black powder coated steel
46-1/2" x 28" usable platform
59-1/8" long x 27 1/2" loading ramp included
Easy installation and assembly
Weighs only 86 lbs
Fits Class III and IV 2" hitches
10 tie down points for maximum security
Includes 5/8" hitch pin, ramp, anti-wobble device
Swing away option available
That's a good idea and I would also look into a flashing strobe light for it as well.