There are various trike hitch racks on the market. We recommend visiting:
Hitch Rider , Alpaca Carriers , Atoc , or Seasuckers .
Catrikes also fit easily in SUVs, hatchback cars, station wagons, or mini vans with folding seats. All you have to do is roll the Catrike in backwards so that the rear wheel will fit in between the front seats of the car. In some cases, you may find it easier to keep the cranks between the seats. Another option is to use a roof rack that has the provisions for 3 wheels, like three trays.