The model has now been primed and for this I have used vallejo's new acrylic primer. This can be sprayed through your airbrush or brush painted. So far I have found it very good. I especially like the fact it is more controllable unlike using spray cans. I have also found a little goes a long way. Coverage is very smooth and trouble free.
I also decided to alter the moulded on outer door handles, this was achieved by using a new chisel blade and careful removal then trimming the handles and re attaching. They look much better now.