In this system of business listings we differentiate car delivery from car transport and transporters as we think of transporters moving vehicles accross countries, during house moves or for factories moving many cars. We think of car delivery as local deliveries or vehicle movements to a motorshow or between dealerships.
It is illegal to carry humans inside a moving trailer or caravan. You may transport animals, although it is not recommended that you do. Ensure you know what is and is not covered by the law before you set off onto the open road.
Its very easy to make sure your trailer is road worthy and your load is securely strapped down, but make sure that you have a legal number plate on the trailer that matches the number plate on the car. A hand written number plate is NOT legal.