Rhinocarhire.com won the "Best Car Hire Website 2010" award at the Travolution Awards in London. They've sent an email to customers, to say thanks to them (and their friends and family), and they're offering a 5% discount for bookings made in the next 7 days.
I used them to book car hire in Austria and the USA earlier this year and found they were already much cheaper than going directly through the car hire companies so can definitely recommend them from personal experience. I had no problems whatsoever and would happily use them again. A further 5% discount would be a bonus on top.
Sounds good. Are they sort of an intermediary for the major car hire companies? What about CDW insurance? Do you still have to deal directly with the car hire firms on that?