It's a pretty good effort considering it's off the shelf and probably as close as you'll get without taking a cab to a paint shop.
In the past, I used to put a the cab in the van and take it to an auto body shop. They use a scope which they put on the cab which firstly tells them what colours to mix to get the correct colour, it then gives them the sheen on a scale from one 1-10. Donkey Kong was 6 which is in the satin bracket although from the factory they were finished with Formica which is much harder to match, in fact impossible in the UK.
