CarDelMar

Green Motion car rental in London - Good

Getting and returning the car worked very fast, without any problems (except from finding the Green Motion office in Edgware Road, which is rather tricky - best thing is just to enter Hilton and ask your way through to the car rental offices).

There were two things I did not like: First, the extraordinarly high processing fee (around 80GBP) which is due in case the company has to process any tickets arriving through the post. Naturally, getting a ticket is never nice, and you try to avoid it, and I agree that a certain processing fee is fair, but not 80GBP.
The other thing was that, other than stated in the prepaid voucher, we got the car with a quarter of a tank fuel level, and had to return it the same. Very annoying. In my opinion, the policy should always be full to full, everything else is just an annoyance for the customer.

Apart from this, everything was fair. The cars in the lowest class are very basic, but that's what you expect. All in all - very good value for the money.