I recently disposed of my Land Rover Discovery V8 [mentioned above], to the charity "Kids Under Cover", via their 'Donate Your Car' program.
You remove the registration plates, surrender them to Dept of Transport (and obtain a refund for any remaining amount), then a car-carrier picks the vehicle up at your home, at a time that suits you. Manheim, (the largest auction company in the world), sells the vehicle at their nearest auction centre, and then hands the full amount to Kids Under Cover. They also cover the cost of collecting and transporting the vehicle.
The money is used to build self-contained accommodation (in the back yard) for "troubled youths" who need some space from the rest of their family, and who would otherwise end up living on the street. They also offer a scholarship program to assist young needy people with education, job training, etc., plus a Mentoring program to improve a young person's confidence and self-esteem.
An extremely worthy charity, which I recommend to you all to consider when you are thinking of trading-in or disposing of that 'unwanted vehicle'!
BTW, they also take "non-goers"!! See Kids under Cover at kuc.org.au