Based on some threads I've read on cs.net, some have suggested that the ATE items listed for 182/Trophy (with ESP) are correct for the rear and even come with the Renault part number printed on the cable.
For example, see Post #11 in
http://www.cliosport.net/threads/n-s-rear-abs-sensor.73049, which is for the ATE rear left (near-side) sensor, with ECP part number ending 750. You can see the correct Renault part number printed in the photo.
The cross-referencing to Renault part numbers in ECP's own eBay listings for these items seem to be correct too. ECP only seem to list a rear right (off-side) sensor when I put in the details for my Trophy, which has the longer 1668mm cable that runs across the rear beam (ECP part number ending 760).
Can anyone confirm?