Is the rear facing attachment same as the Diono RXT?

Hi Leann, Thank you for the enquiry. The Olympia has an exterior Shoulder width of 45.72cm and Interior Shoulder width of 33.02cm. The RXT has an outside width of 43.2cm and Seat width of 38.1cm, both are installed using the latch system, with the RXT capable of Fitting 3-across the back in a mid-size vehicle, offering more shoulder space. Other dimension specifications for these seats can be found if you click on the pink “specifications” tab allocated next to the product image online. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder where you can find contact details for your nearest Baby On The Move store. Here, one of our expert Car Restraint Technicians can assist you in finding the right restraint for you and your child. We hope this has helped with your query.