Until the 6th anniversary of your iva start date your credit report will show the iva. Depending on the garage you are using it will depend if it shows up or not and whether they have 'a way round' their system ..often they do but it may mean a slightly higher APR.
Moneybarn are a recommended company for people with ivas that require csr finance ..it might be worth talking to them.
Sharing from experiences of dealing with debt
There is a solution for everyone .... Just need to stay positive !
I was offered a car loan from Car Loans 4U shortly after completing my IVA. I did inform them that I just come out of an IVA. They provided me with a loan at a competitive high street rate through Barclays Finance. This was back in 2011. Think I had received my Completion certificate before I applied. Not sure if they are still up and running. Might be worth ringing and making some inquires.
Also check to make sure you are off the Insolvency Register.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk