This review shows pictures of the 500L. Caution, the boot photo shows the space with the rear seats folded away.
http://www.honestjohn.co.uk/road-tes...2013-road-test
Remember that your booking is for the example car "or similar". I rent quite a lot from Hertz in Europe and the fleet is always changing between model types, I very rarely get the quoted car - it's always an equivalent from a different manufacturer.