Can I add my agreement to apersson850 too!
I have a 2007 (57 plate) 2008MY and this does NOT have the display either with factory fitted front and rear park assist. Display reads Park Assist Active (useful
) and does NOT display distance.
My system (now after replacing speakers) functions as it should for this model at this age.
I don't know if this is a software update, but I would assume it's hardware as well as software and probably not a straight forward upgrade!