Cleaning interior of vinyl roof

Hi all,

I have a black roof on my clipper but the interior of it is white. Well, I say white, it's more dirty beigey white I tried bleach to try and whiten it up but it didn't seem to help and I was worried about it dripping on the seats. Is there anything you can recommend to bring it back to scratch please? It's a reasonably new roof, within at least the last 2 years.

Many thanks

Cif cream cleaner works well. I've used astonish oven cleaner too. Both very good as the slight grit texture helps get into the cracks and cleans it up well

use a nail brush too.

Gets to al those hard to reach places

Thanks people As soon as the weather warms up and I don't have endless DIY to do I'll crack of with the cif and nail brush 

It's not all glamour owning a classic car!  

Those white magic sponges got mine looking brand new  

Oooo thanks m00, I'll look one out when I'm next at Sainsburys