They also have a Rear Parking Camera an Option on if you have the Navigation system....
http://www.mazda.co.uk/sycomax/uploadpool/documents_UK/forecourts/brochures/Accessories_Mazda5.pdf
http://www.mazda.co.uk/sycomax/uploadpool/documents_UK/forecourts/brochures/Accessories_Mazda5.pdf