BAK RACK Stainless Steel rack. Have a look at the Bak Rack website and you'll see all the details of these brilliant racks.
Briefly, you can keep this in your boot and it fits on your towball in a matter of seconds. Pretty much anything you care to strap on it! I bought it direct from Bak Rack about 3 years ago and have used it probably a dozen times to carry mobility scooters. This is the Stainless Steel version which has higher weight carrying capacity than the standard model and is rated at 120kg.
You can get all sorts of different add ons for specific things and it also has built in mounting points,'captive nuts', that allow you to bolt on your own'accessories'. Bak Rack may not be the first name people know in relation to racks but they are quite possibly the best.
Comes complete with towball adapter just as you see it in the pictures. This item is in the category "Vehicle Parts & Accessories\Car Parts & Accessories\Towing Parts & Accessories\Towing Accessories\Other Towing Accessories".The seller is "scootintheboot" and is located in this country: GB. This item can be shipped to United Kingdom.