AI Vans new skin

First off the City Link replacement skin has been updated; all the vans I see out and about keep the “Express Delivery” text as a result I have added that back to the replacement skin.

Previously there was a dirty white van skin for the UK which was essentially a white van with a dirt look and hand written funny text. However it was so subtle, it just would never be seen unless you were really looking for it. As a result I have replaced this skin with an A. Davies Fleet Support skin.