Although I cannot find the full T&C’s for this one, according to their website Trenton Nissan in Hull are offering ‘upto £500 off the AP on the Nissan range’:
https://www.trenton.co.uk/nissan/motability/
It says to ask for the T&C’s, but if you are interested in upto £500 off a Nissan it could be worth contacting them.