Got this in a Email, Its just one way and the routes are mostly to london area but it may help someone.
WHY ARE WE DOING THIS?
You may be wondering why we are offering you car rental for 1 pound. You may think there is some kind of catch. But don’t worry, there is a logical reason behind our crazy offer!
Often we need to re-locate a vehicle, to be ready for the next rental or to return it to the manufacturer at the end of its lease.
Transporting the vehicle by truck is very expensive, so if you can bring the vehicle to where we need it, we charge you only 1 pound, and we both benefit!