there's no requirement to explain your reasons for wanting to keep a vehicle but if you would like to to do so prior to interview then do so in section 13 (additional information).
I know i did on OH's but again i am a worrier, i wrote it in section 13 as additional info but like John says you dont have too. I just wanted to make sure they knew it all.
Jo x
"There is light at the end of the tunnel, if you cant find it get a brighter torch" You can read my updated Needafriend's New Life- A Debt Free One! blog here: http://debtfreejo.blogs.bankruptcyhelp.org.uk/